Fireball

iTrader: (21)

its the sender...

I replaced one in a 1999 Silverado 2 months ago and fixed that same exact problem

Took less than an hour

FLATOP08

iTrader: (4)

Hopefully this will answer everything.

Document ID# 1522975
2001 Chevrolet/Geo Chevy C Silverado - 2WD


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Cranks But No Start, Stall, Inaccurate/Incorrect Fuel Gauge Reading, No Fuel, Vehicle is Out of Fuel and Fuel Gauge Reads Above Empty (Replace Fuel Level Sensor) #04-08-49-018A - (Jun 1, 2004)
Cranks But No Start, Stall, Inaccurate/Incorrect Fuel Gauge Reading, No Fuel, Vehicle is Out of Fuel and Fuel Gauge Reads Above Empty (Replace Fuel Level Sensor)
2001-2004 Cadillac Trucks

1999-2004 Chevrolet and GMC Trucks

with Gasoline Engine (VINs X, V, T, U, N, G -- RPOs LU3, LR4, LM7, LQ4, LQ9 or L18)

This Bulletin DOES NOT APPLY to vehicles with Variable Fuel (VIN Z -- RPO L59)

This bulletin is being revised to add Correction and Parts Information. Please discard Corporate Bulletin Number 04-08-49-018 (Section 08 - Body and Accessories).

Condition
Some customers may comment on the vehicle stalling and will not restart, vehicle ran out of fuel, vehicle appears to be out of fuel but the fuel gauge reads above empty. The fuel gauge may read 1/4 tank.

Cause
Contamination on the fuel sending card may cause inaccurate/incorrect fuel gauge readings.

Correction
Follow the service procedure below for diagnosis and repair of this concern.

Confirm that the vehicle is actually out of fuel.
If the vehicle is not out of fuel but Engine Cranks but Does Not Run, refer to the appropriate Service Information.
If the vehicle is out of fuel and the gauge does not read empty, test the fuel gauge. Refer to the following information:
Fuel Gage Inaccurate or Inoperative Single Tank (SI Document ID #850196)
Fuel Gage Inaccurate or Inoperative Dual Tanks (SI Document ID #850195)
If testing reveals that the fuel gauge is operating correctly, replace the fuel sensor assembly and auxiliary tank fuel level sensor if equipped.
Replace the fuel level sensor. Refer to the following appropriate service information:
Fuel Level Sensor Replacement 4.8L and 5.3L Engines (SI Document ID #1332662)
Fuel Level Sensor Replacement 6.0L Engine - Front Tank (SI Document ID #1333086)
Fuel Level Sensor Replacement 6.0L Engine - Rear Tank (SI Document ID #1333087)
8.1L vehicles with front tank refer to Fuel Level Sensor Replacement Front Tank (SI Document ID #1333104)
8.1 L vehicles with rear tank refer to Fuel Level Sensor Replacement Rear Tank (SI Document ID #1333105)
Parts Information
Parts are in limited quantities. Please DO NOT order parts for stock.

Part Number
Description

89060635
Sensor Assembly, Aux Tank, Rear

2001-2003

360364 0353, Cab/Chassis, Reg. and Ext Cab

with LQ4 or L18 and --NQZ (with aux fuel tank)

89060636
Sensor Assembly, Main Tank, Side

2001-2003

360364 0353, Cab/Chassis, Reg. and Ext Cab

with LQ4 or L18 and --K53 (without robust fuel system)

89060637
Sensor Assembly, Main Tank, Side

2000-2003

159259 0636, C/K, Long Wheel Base Utility

with LM7 or LQ4 or LQ9 or L18 and --K53 (without robust fuel system)

89060638
Sensor Assembly, Main Tank, Side

2000-2003

157 06, C/K, Short Wheel Base Utility

with LM7 or LQ4 or LQ9 or L18 and --K53 (without robust fuel system)

89060640
Sensor Assembly, Main Tank, Side

1999-2003

100200300 034353, C/K, 2 Dr, 4 Dr and Ext Cab Pickup

with LU3 or LR4 or LM7 or LQ4 or LQ9 or L18 and --K53 (without robust fuel system)

2004

100 0353, C/K, 2 Dr and Ext Cab

with LU3 and --K53 (without robust fuel system)

89060642
Sensor Assembly, Main Tank, Rear

2000-2003

259 0636, C/K, Long Wheel Base Utility

with LM7 or LQ4 or LQ9 or L18 and -K53 (without robust fuel system)


Parts are expected to be available from GMSPO, 6/14/04.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

L1197
Sensor, Fuel Level (Tank Unit) - Replace
Use published labor operation time




GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© Copyright General Motors Corporation. All Rights Reserved.


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Document ID# 1522975
2001 Chevrolet/Geo Chevy C Silverado - 2WD

L-EATER

iTrader: (2)

Well, I ordered a new fuel sender from the dealer and what do ya know-no more codes and the gage works fine again. Who knows why these things are so dang sensitive...

chevymec

iTrader: (19)

Did you get the sender or the sendor? If you look at the fingers on the sensor you should see that a finger is broken

hammerhead

iTrader: (1)

How difficult is it to replace the sending unit? Because I just got a quote from a dealer to fix mine for about 600 bones!

Speedextreme

Real easy solution guys. This happened on my Y2K. It is fuel deposits being left on the fuel level sending unit on the inside of the tank.

Here is what you do....

Wait till tank is damn near empty, drop the tank. Remove the fuel pump assembly completely from the tank and bring it to the work bench.

Now on my '00 there is one plug for the fuel level sending unit that also has two wires on it for the pump, on the '02 that I saw, the flsu and the pump had two different plugs.

Once you get the flsu off the side of the pump housing, you will notice a clip on it. Remove that clip and VERY CAREFULLY remove that "board" with the two wires atached to it. BE VERY CAREFUL when you do this because you will see the "fingers" attached to the float arm that NEED to make contact with this "board" so it can tell how much fuel you have.

Now that you have the "board" out of the flsu housing. CLEAN IT, I used a wire brush and some contact cleaner. Don't go nuts on this thing, just a good cleaning of it will be fine. Once it is clean, CAREFULLY put it back into the flsu housing, put the clip in and you are done.

Then just put the pump back in the tank, the tank back up under the truck and go fill it up!!! The worst that can happen is you have no fuel gauge. Then you will be stuck buying a new unit.

But this is exactly what I did and it works, I haven't had a problem with it in about 3 months!

wiseshanks

Best thing to do is take it to a dealership and have them look at it with a scan tool...It could be anything from a bad sensor to a loose wire...

95ImpSS

iTrader: (2)

Had this issue twice with my '02 Kon. SpeedExtreme just described what a dealership does. I've seen it personally. the first time it happened, they did what Speedextreme said. The second time it happened, both the sending unit and the pump decided to say "screw you". Would I do it myself? If I was looking to save $100+ on a sending unit, probably. At the time, I lived in an apartment complex, and wanted my Kon to have "new" parts... ONLY b/c my wife was driving it as a primary vehicle with two young sons as passengers, and my job had me traveling more times than before. After $290 in parts and $299 in labor, I had a running vehicle before quittin' time the same day they took it. At the time, I paid for piece of mind knowing my wife & kids wouldn't be stranded b/c of unpredictable parts.