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Fuel gauge not working on 94 sierra - 1994 GMC Sierra

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1 Answer

Oil sending unit location (94 Gmc Sierra)


on the back of the engine by the distributor, it about the size of a pill bottle

Jan 02, 2014 | 1994 GMC Sierra

1 Answer

Put fuel pump in 94 gmc 1500 and when truck heats up it will die acts like it isnt getting fuel what should i check next


Check the fuel pressure with a gauge when the engine is hot.
Could be a faulty pump, or pump relay.

Apr 11, 2013 | 1994 GMC Sierra

1 Answer

I have a 94 gmc 1500 with a 305 it runs but has no power and it shifts kinda funny what could be rong with it


I would probably start with the fuel system. Change the fuel filter if you have not yet, and then check fuel pressure with a gauge.
Is the check engine light on ?

Apr 07, 2013 | 1994 GMC Sierra

1 Answer

Where is fuel pump fuse on 1999 sierra truck


low fuel light on but still runs good but went that happens that fuel gauge reads empty than low fuel out fuel gauge reads ok whats my problem louis

Nov 09, 2011 | 1999 GMC Sierra

2 Answers

Why is my 94 gmc c1500 low oil pressure.


You may have a bad oil sending unit this is located under the hood near the oil filter two wires are connected to it. i would change this and see if your problem persists, if so you could have an oil pump you wont hear anything until its too late. 20 psi is all you need to keep it alive. good luck

Apr 16, 2010 | 1994 GMC Sierra

1 Answer

Fuel gauge not working properly


Replace fuel tank sending unit.

May 26, 2009 | 2000 GMC Sierra

1 Answer

1999 GMC Sierra fuel gauge is erratic


the fuel level sensor inside your gas tank might be defective
you need to drop the tank and check the level sensor

Apr 02, 2009 | 1999 GMC Sierra

2 Answers

Fuel gauge not working all the time.


This is a normal concern.
The instrument cluster uses 4 different operating modes to calculate the fuel level:
Anti-slosh (default mode)
Key OFF fueling
Key ON fueling
Recovery
After a fuel fill up, the time for the fuel gauge to move from empty (E) to full (F) ranges from 2 seconds to 55 minutes depending on which operating mode the fuel gauge is in.
The default fuel gauge mode is called the anti-slosh mode. To prevent fuel gauge changes from fuel slosh (gauge instability due to changes in fuel sender readings caused by fuel moving around in the tank), the fuel gauge takes approximately 55 minutes to go from empty (E) to full (F).
The key OFF fueling mode (2 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The key must be in the OFF position throughout the entire refueling of the vehicle.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
The instrument cluster must receive a valid key ON fuel sender reading within 1 second of the key being put into the RUN position. The key ON sample readings are considered valid if the fuel sender reading is between 15 ohms ± 2 ohms and 160 ohms ± 4 ohms.
If these conditions are not met, the fuel gauge stays in the anti-slosh mode, which results in a slow to read full (F) event.
The key ON fueling mode (approximately 90 seconds to read empty [E] to full [F]) requires 3 conditions be met:
The transmission is in PARK (P).
The key is in the RUN position.
At least 15% of the vehicle's fuel capacity must be added to the fuel tank.
In key ON fueling mode, a 30-second timer activates after the transmission is put into the PARK (P) position (automatic transmissions). When the 30-second time has elapsed and at least 15% of the vehicle's fuel capacity has been added, the fuel gauge response time is 90 seconds to read from empty (E) to full (F). When the transmission is shifted out of PARK (P), the fuel gauge strategy reverts to the anti-slosh mode. The key on refueling mode prevents slow to read full events from happening if the customer refuels the vehicle with the key in the RUN position.
Recovery mode is incorporated into the instrument cluster strategy to recover from a missing fuel level input during a refueling event. Missing fuel level inputs result from intermittent opens in the fuel sender or its circuits. Recovery mode (empty [E] to full [F] approximately 20 minutes) is initiated when the following 2 conditions are met:
The instrument cluster is in the anti-slosh (default) mode.
The actual fuel level in the tank is greater than what is being displayed by the fuel gauge

Feb 18, 2009 | 1983 Mercury Grand Marquis

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