97 s10 fuel level buffer module. Oct 6, 2009 · Anyone with dual tanks having problems with fuel gauge or the automated balance flow system this may help. Will a 93 Fuel level buffer module work in a 91? May 25, 2022 · How can I go about wiring up a fuel gauge without this buffer box. The service manual says that this buffer module is located under the IP Compartment (glove box), but I have not found a drawing of that location yet. I cannot find anywhere that still has this item available. Stays on full and I have a stand-alone harness motor runs and everything but trying to keep stock cluster. 98+ all work differently since 98 was the first year for the BCM 97 S10 RCSB 4. Is there a difference between a 97 s10 blazer and a 97 blazer Lt? Is there a fuel level buffer module in a 97 Blazer Lt? Sep 15, 2021 · have a 97 s10 and I think it has come down to the Buffer Module Bad in my truck Causing the Fuel Gage to always read full. 2002 Dakota, QC 4x4, 4. If you reach up under the glove box and feel around you will find a foam covered black box that is velcroed to the dash. -right side of engine) (6 cyl. I have most things figured out: left & right turnsignals, dash lights, Volt gauge, OPS gauge, and some of the idiot lights. May 1, 2020 · Exterior lights system Fuel gauge Fuel lev Fuel lev out Fuel lev rtn Fuel lev sig Fuel level buffer module (below i/p) Fuel pump & sender (in fuel tank) Fuel pump/ oil pressure switch & sender (4 cyl. I've checked the wiring from the sensor to the connector on the firewall and all is ok. Slightly toward the rear of vehicle along the frame rail. May 26, 2022 · All wiring looks OE. Symptoms of a faulty module include erratic fuel gauge behavior or no fuel level reading. This module will Apr 3, 2020 · I’m having a terrible time trying to get my fuel gauge to work on my 97 Sonoma. 12-21-2023 #4 99k2500 View Profile View Forum Posts Private Message Aug 18, 2012 · The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4. Disconnect the fuel level buffer module. Its located under the passengers side dash. About 2inch by 3inch circuit board inside the module compartment which Oct 20, 2022 · Under the passenger side, behind the glove box, attatched with velcro. Back probed pin "L" and pin "M" and used a 0Ω to 90Ω sender. Manually swept Feb 11, 2016 · The GM add on was a buffer module that you added into the wiring between the cluster and sender. See full list on oemcats. The purple wire that, from the factory, went from the buffer module to the PCM, is physically connected, on the buffer module, to the signal from the level sensor in the tank. The schematic I have doesn't show any intermediate connectors. 0L or 5. Check to make sure the pump is correctly hooked up, the purple wire should be the one that relays the tank level The older trucks including 97 and pre, work off of a 0-90 ohm sending unit while the 98+ trucks are 40-250 ohm. Notes: Fuel Level Sending Unit -- FUEL MODULE. Feb 1, 2023 · It must be a 97, the fuel level and oil pressure gauges rely on that, 1 yr only, fuel level buffer control module. Jan 11, 2023 · Looking for part no. 3L /GMC SONOMA V6-4. Would be easy to snag from a 96-97 Express/Savanna van. I decided to make this video to show how Jan 18, 2012 · 96 and 97 models have a fuel level buffer module under the dash. I'm thinking they must use serial data coming through the A6 gray wire DIY Tutorial Depot:troubleshootmyvehicle. Gauge cluster was also replaced for major faults but gauge still inaccurate. Come back out shows full. I have 97 blazer with 4. So next step is remove cluster and figure out why the fuel gauge isn't grounded. How your vehicle's fuel sending unit reads The fuel lever sensor connects to the fuel level buffer module, which then links to the instrument cluster gauges. My fuel gauge does not work. Remove 3X, 5/16 screws to access it by passenger feet. The fuel gauge should read full. Apr 3, 1997 · Happy to assist! 1. I used lt1swap for the obs pinouts to determine what I keep and remove. To troubleshoot, inspect wiring connections for corrosion or damage, test the module with a multimeter, and check the fuel sender unit on the tank. 1997 Chevy Blazer 2-door 4. 1997 S10 ZR2, Ext Cab, 5 Speed SOLDHow to test fuel pressure and leak down <---Diagnostic helpShop Repair Manual <----Click to download Reply Quote Like Aug 15, 2011 · I'm sorry,"Fuel level buffer module"mind you I've only replaced 3 my whole time as a dealer technician. Goes from 1/2 to empty in a flash but only takes 11 gallons to fill up. Ignition coil (top right side of engine) Ignition feed M4 brake fuse 12 10a n3 Mod out m Pnk a Power a Power b (+) Press ctrl sol lo Press ctrl sol. Sep 29, 2011 · You don't need it for the gauge to work in a 97 because the buffer module talks directly to the gauge. Some increase resistance from Empty to Full, while others decrease as the level goes up. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Shop wholesale-priced OEM Chevrolet S10 Fuel Level Sensors at GMPartsGiant. the sending unit is on the fuel pump inside the gas tank. The only "problem" at the moment is that the PCM "Gauge Output" and the "Primary Volume" tables are completely not calibrated for the truck :hahano: with several Jul 17, 2013 · Corroded connections or severed ground paths generally cause fuel gauge to register past FULL position. Jul 22, 2020 · Fuel level buffer module (under glove box) Fuel level d Fuel level mod out Fuel level rtn Fuel pump rly ctrl Fused ign (run) Fused ign (run/start) Gauge ctrl l High voltage coil wire Ign timing sig. Where is the 2001 Chevrolet Blazer fuse box located? Find the fuse box diagrams and locations by year. Mar 11, 2004 · By the way, isn't the fifth plug simply the C5 connector that is for the VCM service circuit power? Or maybe you are confusing it for the fuel level buffer module that the '95-'97 model S10's have? Fuel gauge wasn’t working so replaced 2 sending units and still problem existed. 3L, 5. has new fuel pump and sending unit installed. The lever buffer module is connected to the computer that was replaced, which commands the fuel gauge to function. So if the pump does not fix the issue then the buffer may be a factor. Nov 25, 2019 · 96-97 still use a pwm driver from the computer to run the fuel gauge. Sep 3, 2024 · Precision Fuel Pump Wiring Diagram - Wiring Diagram Fuel gauge buffer wire diagram module wires wiring s10 level reference beside correct helpful finding very 1996 k1500 fuel pump wiring diagram Amazon. The fuel sender buffer module in a 1997 Express Van is typically located near the fuel tank or along the frame rail. Oct 4, 2025 · 1997 Chevrolet S10. The BLK/WHT wire is the ground wire to the computer. Customer: is there a fuel level buffer module inthe 2000 S-15 vortec v-6? If so where? Fuel gauge does not work new pump is $300-600 fix? Aug 19, 2013 · I did some looking up, looks relatively simple to replace, and i have a guy wil a 93 S10 who is parting out. Condition: New. All fit 1986-2004 Chevrolet S10 and more. Dec 21, 2011 · Share Reply Quote Like BravadaX 9966 posts · Joined 2010 #3 ·Dec 21, 2011 Fuel level Buffer module mostizzle;7571180 said: Jul 28, 2014 · Other pumps are not worth the time unless you are going to sell the vehicle. Jun 13, 2013 · That year has a fuel level buffer module under the dash. Where is the 2005 Chevrolet Blazer fuse box located? Find the fuse box diagrams and locations by year. you could be able to just replace the sender . Dark out now but didn't locate it or any photos before the '90's. Thanks for any help or leads Reply Quote Like Sort by Oldest first aitch 5244 posts · Joined 2020 #2 ·Feb 1, 2023 It appears my fuel level buffer module is bad and causing some voltage issues that may be leading to a p0301. 2 swapped it to a 5. Turns out it’s needs 2 ground wires. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network. 2L Diesel, 6. There is a box mounted under the dash on the passenger side somewhere around the glovebox. hi DRAC VSSB GM Speedometer Module Replacement and Calibration 1989-2002 Mixed applications 6. Starting in 98 for gas trucks, GM sent the fuel gauge signal through the pcm. ohms read good at tank per local mechanic. 7L Engine has a total of 4 connectors. Helps provide a reliable fuel supply to your vehicle's engine Electrical connections are designed to help eliminate high resistance due to vehicle vibration Designed to optimize pump life and reduce fuel pump noise This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors . Fuel Gauge is acting up again! Replaced the fuel pump and sending unit back in March 2013 and the gauge worked fine up until May 26, 2022 · So after trying bypass the fuel buffer module, it finally sunk in that the buffer converts the varying resistance/ground signal from fuel sender to a voltage signal, that goes to the gauge. com: eccpp new electric fuel pump module & assembly with fuel Customer: have '97 s-10 that had fuel pump replaced, now gauge reads 'empty' all the time. There is a fuel level buffer module under the passenger side dash. They use a fuel level buffer module. The buffer module outputs the buffered signal to the PCM and to the gauge cluster. Mar 1, 1997 · Chevrolet S10 Pickup - 2WD 1997 For 1990-2009 cars only Makes 🢒 Chevrolet 🢒 1997 🢒 S10 Pickup - 2WD 🢒 Engine 🢒 Engine Controls - 4. Feb 11, 2016 · Some 97's had a buffer just like the S10's had according to some part numbers I have found surfing rockauto and acdleco, but I couldn't find any info in alldata or GM service manuals about them. Buffer module pulled out. 7L HO Intake. Test for 5 volts on the Purple wire to the fuel level sensor. 3. 97 S10 RCSB 4. About 2inch by 3inch circuit board inside the module compartment which Sep 2, 2014 · Basically the fuel level comes in from the tank and goes to the buffer module. 2 have this fuel level buffer or module thing? I guess I'll have to check with one of those surly parts counter guys at the dealer, which I was hoping to avoid. 3L, cpi. Hot Today, we tackled the fuel gauge on the 97 s10 that has been LS Swapped. I have fuel pump working off the sending unit and everything wired to gauge just need to figure out how to get gauge to read correctly. My 97 van has a fuel level buffer module to the left of the column under the dash that the sending unit feeds a signal to which then sends it to the cluster. Below is the schematic for the fuel level sensor, that shows a "buffer module" between the sensor and the instrument panel. Had a 2. Aug 17, 2010 · I can't say for 100% certain on a 96 but on my 97, the fuel gauge is basically stand alone. Has any one ever changed one of these and was it hard to get out? I know its under the glove compartment some where and i have seen a few diagrams but any other help would be nice. you can manually turn the gauge to empty and when you install panel back in and turn key on gauge dosnt want to stop at full Oct 20, 2022 · Under the passenger side, behind the glove box, attatched with velcro. 1998 Chevrolet S10. Here is the schematic for the fuel level sensor, which indicates a "buffer module" situated between the sensor and the instrument panel. Apr 10, 2010 · Nobody has answered my original question, which was does the 95 s10 2. Senior Tuner Join Date Sep 2009 Posts 1,339 The fuel gauge was not wired through the PCM in 96 or 97. Fill it up shows empty. But in trying to figure out the fuel gauge issue, i began finding things that dont mesh, with the information i used to do the LS swap. The 96 and 97 trucks had a buffer module if I remember right and 98+ is fully interpreted by the ECM. There was never anything that went in the tank. com. i have replaced fuel pump, fuel pressure regulator and tested for voltage pulses at injectors Fuse box diagram (fuse layout), location and assignment of fuses and relays Chevrolet S-10 Blazer, GMC S-15 Jimmy and Envoy, Oldsmobile Bravada (1995-2005). Gas gauge, gather the following tools: But depending on your vehicle,what engine,2wd,4wd,truck or blazer,what gallon tank,and fuel pump wire harness code. 2000 Chevrolet S10. The service manual states that this buffer module is found under the IP Compartment (glove box), but I have not yet located a drawing of that area. the problem now is that the car will crank, has spark and fuel but will not fire. This module is located by the front (main) lift pump. Test the resistance of the fuel level sensor. Orthat year (97) has a fuel level buffer module underneath the passenger side dash. 97 trucks have a fuel level buffer module that controls the gauge as. May 20, 2014 · burned 2610 posts · Joined 2009 #8 ·May 30, 2014 The unique thing about a 97 is that it has a fuel level buffer module underneath the passenger side dash 2002 Dakota, QC 4x4, 4. If you ground the purple wire in the harness connector, the dash gauge should read below empty. 2L Standard Cab Pickup 2-Door RWD Automatic and the process should be similar on the following vehicles: 1994 Chevrolet S10 1995 Chevrolet S10 Jan 9, 2021 · Chevrolet Blazer (1995 - 2005) - fuse box diagramChevrolet Blazer (1995 – 2005) – fuse box diagram Year of production: 1995, 1996, 1997, 1998, 1999, 2000, 2001 Nov 10, 2012 · I would suspect the regulator in the alternator then. It should be between 40 and 250 ohms. Aug 18, 2008 · I'm Lost!! I have replaced the Fuel level sensor and guage cluster on my sons 1996 S10 but the fuel gage in the cluster does not work (It pegs on FULL). 8 V8, 4L60E swap. -- HOW TO FIND THE MODULE The fuel level buffer module is located under the dash on the passenger side of the truck. 5L Diesel, TBI Gas. S10 Fuel Sending Unit Wiring. 3L 4 DOORS fits E3953M: Electric Fuel Pumps - Amazon. Is there a difference between a 97 s10 blazer and a 97 blazer Lt? Is there a fuel level buffer module in a 97 Blazer Lt? If there is a fuel level buffer … read more I noticed lately that the fuel gauge in my 2000 Chevy S10 ZR2 was bouncing and I was never sure how much fuel I had. 3 automatic. Delphi FG0070 Fuel Pump Module Aug 21, 2022 · Searching here, across the internet, and across facebook, a number of sources say that you can wire the fuel sender from the front tank (pin c, connector 1 on balance module) into the fuel level input on the VCM (pin b, connector 2 at balance module) and get a working fuel gauge. If you unplug the module connector, the dash gauge should read past full. changed the instrument panel out with salvaged one and still reads the same. (Speed) 99 Blazer ZR2 4. 3L 🢒 DTC P0463 Fuel Level Sensor Circuit High Voltage Handling ESD Sensitive Parts Notice Handling ESD Sensitive Parts Notice Engine Controls Components Fuel Controls OBD II Symbol Description Notice Nov 19, 2020 · So I’ve been chasing a fuel gauge problem I’ve went threw 3 fuel pumps/ sending units and three cluster and all the same result I was on all data and found out about a fuel level buffer module and May 20, 2016 · Aftermarket or old sending units will not relay the correct info to the gauge or the fuel level buffer module if its a 97. You can't run it "straight to the cluster" 96-97 does not use the PCM at all. Does anyone have an idea what it could be? Thanks, Jim Customer: why would fuel gauge on 1997 s-10 blazer read past full and stay. 3 and can not get the fuel gauge to act right. Jul 31, 2016 · If it helps, at least in one place the module is also called fuel sender buffer module. Aug 18, 2012 · The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4. 1997 S10 ZR2, Ext Cab, 5 Speed SOLD How to test fuel pressure and leak down <---Diagnostic help Apr 14, 2021 · The diagram of the Chevrolet Blazer (S10) 2nd generation models of 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 are considered, and also GMC S-15 Jimmy and Envoy (1998-2000) and Oldsmobile Bravada (1995-2001). Starting in 98 it was. 3). (Current Daily) co-owner of S10s Unlimited Inc. It have changed the fuel pump, gauge cluster, fuel level buffer module, relays and checked all the fuses and the fuel gauge still doesn't work. I have changed the fuel pump and instrument cluster and the fuel gauge still does not work Pick-up. I still can't find it anywhere, but maybe you should grab one from a junkyard if you can. new fuel tank and egr valve. (Mud/Winter) 09 C6 Z51 Corvette. 3 auto. I believe the benefit is that the ECM can manipulate the signal and adjust for irregularities in the tank to give a truer reading. This box is it's own little circuit board that buffers the fuel level for the gauge. Where is the 2000 Chevrolet Blazer fuse box located? Find the fuse box diagrams and locations by year. NOTE: For other PCM pin-out charts, take a look at the following: Aug 31, 2015 · Have tried three from the yards and operation is sporadic at best. On top of this module is a fuel pump balance relay, it turns the rear This repair was done on a 1994 Chevrolet S10 Base 2. Replacing the buffer module or repairing Is there a difference between a 97 s10 blazer and a 97 blazer Lt? Is there a fuel level buffer module in a 97 Blazer Lt? If there is a fuel level buffer … read more Is there a difference between a 97 s10 blazer and a 97 blazer Lt? Is there a fuel level buffer module in a 97 Blazer Lt? If there is a fuel level buffer … read more For the fuel gauge you can wire directly from the sending unit to your . -near distributor) Fuse block: i/p G114 G117 Gauges fuse 4 10a Head- Headlights Headlights system Hi beam ind. 97 trucks have a fuel level buffer module that controls the gauge as the gauge is not controlled by the pcm. Additionally, verify if the fuse blows when the following components are disconnected: A/C relay, transfer case control module, remote keyless entry module, sensing diagnostic module, front axle switch, instrument panel cluster, fuel level buffer module, alarm module, rear defog switch, and the daytime running lamps relay. 12135193 (Fuel buffer module) for 1997 Chevy S10 V6 1997 fuel buffer module p0301 Jump to Latest 4. In short, it goes from the tank to the fuel level buffer module, under the pass side dash, to the gauge. 3L. The 97 has a different setup for monitoring the fuel level. had a deadshort to 5v reference wire that controls tps, air temp sensor circuit short was located a fuel level buffer module. Mar 28, 2012 · -- THE BASC ISSUE 97 trucks have a fuel level buffer module that controls the gauge as the gauge is NOT controlled by the PCM. 3. Sender is new and proper signal is at the buffer. 1 went bad from a lightning strike,2 caused a jittery fuel gauge. Is it possible that the sensor needs to be getting Mar 20, 2014 · The thing about the 97's is that they have a fuel level buffer module that relays the fuel tank level to the computer then to the dash gauge. Short circuits to ground generally result in fuel gauge resting below EMPTY position. com Testing the fuel gauge at the buffer module enclosure. Diesels didn't get it because the diesel ecm wasn't capable of it. I know mine has the fuel buffer module but would like help from somebody that has succeeded with this. State-of-the-Art technology and facilities make our part's quality outstanding. So that has me thinking the obs harness and pcm shoukd be 96-97. 6K views 11 replies 6 participants last post by Rhotpursuit Oct 18, 2024 Sep 30, 2025 · 1997-2002 Chevrolet S10 FUEL MODULE;. 1997 S10 ZR2, Ext Cab, 5 Speed SOLD How to test fuel pressure and leak down <---Diagnostic help Shop Repair Manual <----Click to download Like E Customer: I'm wondering if a 4 door 97 chevy blazer has a fuel gauge module. On my 97 van it is behind the column trim, under the cluster. com FREE DELIVERY possible on eligible purchases Oct 19, 2008 · Wiring problem or sending unit. 3L Oct 7, 2014 · I believe it was in the gen2 redesign that they made the change over to ecm read fuel level. It communicates the information from the fuel level sender to the computer. Or ask at the (gasp) stealership. You didn't mention the year of vehicle? If its a 97 there is a fuel level buffer module under the dash. Oct 24, 2008 · Where to get fuel sender buffer module? Jump to Latest 5. Fuel level gauges are designed to work with specific sending units that vary from one automobile or gauge manufacturer to another. . and Garage Thirty SaveShare Like the_merv 901 posts · Joined 2011 #8 Dec 20, 2010 · The purple wire from the level sensor runs to the fuel level buffer module under the dash to send the resistance to the buffer module. Notes: Fuel Tank Sending Unit. 4. Mar 26, 2022 · Driving home I'm thinking I don't recall any fuel gauge relay under the hood an at home search but found references to a fuel gauge buffer module. 4K views 4 replies 4 participants last post by LDM Oct 27, 2008 L Jul 27, 2014 · While it could be the sending unit, there are ways to test it and a weird thing in the 97 trucks called a Fuel Level Buffer Module. trying to locate 4 pin (2x2) fuel pump connector so i can check continuity from sender signal to sender return. relaced circuit board . You can access it by removing the lower cover under the passenger side of the dash. You need the gray 5v reference wire hooked up though. Fuel Level Buffer Module GM #12135193 Chevy S10 for Sale When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Test for ground on the Black wire. this resolved the low or no voltage issue. Jan 10, 2014 · In the table below you'll find the fuse location and description of the fuses of the fuse box on 1997 Chevy Blazer, Oldsmobile Bravada, S10 Pickup, and GMC Sonoma. I can't figure out the temp gauge and the fuel gauge and the hi-beam indicator. Reply Quote Like Sort by Mar 21, 2015 · I started messing around with this a little this evening, got the PCM reading the fuel level sender and outputting PWM to the gauge. Customer: is there a fuel level buffer module inthe 2000 S-15 vortec v-6? If so where? Fuel gauge does not work new pump is $300-600 fix? Jul 13, 2010 · I have a 97 S10 4. You would only wire that in if you needed the PCM to be aware of the fuel level for some reason. For a builder updating their vehicle with new gauges, this presents a problem in that the aftermarket gauges must match the sending unit located in the tank. Oct 25, 2018 · This is a high quality, brand new aftermarket replacement Fuel Pump Module Assembly, it's a direct OE replacement for the fuel pump assembly module that you can use inside your vehicle fuel tank without any modifications. 1999 Chevrolet S10. Vehicle fitment（FP3952M and FP3563M both fit 03-02 CHEVROLET S10 V6-4. The level sender can be serviced Jul 4, 2015 · 1998 Chev truck gas gauge problem The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board Apr 27, 2017 · Buy Fuel Pump Module Assembly Replacement for 97-98 Blazer S10 Jimmy S15 Bravada 4. 2. Digital Ratio Adapter Calibrator, Vehicle Speed Sensor Buffer, TBI VSSB Module, TBI DRAC Module Nov 1, 2016 · Looking for ACDelco Fuel Pump and Level Sensor Module with Seal, Float, and Harness? Find that and thousands of other performance and OEM parts through Scoggin Dickey Parts Center! Customer: I'm putting a 98 S10 dash in a 97 s10 (it's actually a custom old truck with an S10 chassis and drivetain 4. I read 97 used a buffer module for the fuel gauge. the s10 fuel pump wire colors typically used are grey color for power to fuel pump, black and white strip represents a ground. We found the fuel buffer module and wired it to work correctly with the truck now t Purple wire on instrument cluster connector, pin 29 to fuel level buffer module, pin L, under the cluster. You don't need the old ECU to run it because it's the fuel level buffer module that runs the gauge. c4 58zw h2zmnl txlotl2 ar3m 9yp dyeut r66q an9n 7goxgnh