Question about 1992 Pontiac Trans Sport

1 Answer

Fuel pump not working

Fuses all good, new pump, power at sender, no power at pump

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 42 Answers

The pump only runs for 2-10 seconds with the key on and then shuts off if the vehicle doesn't start or isn't tried to start. Are you checking it within this period? The power you are picking up at the sender is for the guage. You also have a relay that controls the pump as well as the oil pressure sensor to make sure you have plenty of oil for the engine to run. Are you positive it is in the fuel system? Let me know.

Posted on Jan 05, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

No power to fuel pump on 92 olds silhoute

fuel gauge the tank sender is like a resister, no resistance to ground gauge goes up, i think you have a grounding fault in the earth wire, you will need to trace were the wire goes to or make a new feed, making a new earth feed can sometimes be better if you have a spare bulb and some wire to attach to it connect one wire to the live feed on the pump and then ground the earth wire on the shell if it lights up then its the ground that's at fault.

Dec 24, 2017 | Oldsmobile Silhouette Cars & Trucks

1 Answer

Gm tbi no fuel gauge

Sounds like a short in the fuel guage circuit or fuel guage sender unit. check all connections are good. check no water got into connections.

Nov 26, 2017 | 1988 GMC C3500

1 Answer

My car wont start in the morning i checked all the sensors they are good brand new fuel pump and all the fuses are good. my mechanic say he is stumped. i used lucus oil incase of a clogged injector still i...

Some cars have a safety shut down fuel pump relay,Have you hit a big bump or had a fender bender? Oil pressure sender will stop the pump,is the fuel filter plugged,Have you cheked the fuse, is there power to the pump? Is the tank empty? Is there power to the injectors? Engine computer?

Mar 05, 2012 | Cars & Trucks

1 Answer


The fuel sender unit and the fuel pump take the power from the EFI fuse.
The fuel gage takes the power from the gage fuse.

Operation: the fuel sender unit has a float device that measure the fuel level and send the measurement in volts to the instrument cluster, the cluster contain the fuel gage.

Jan 19, 2011 | 1999 Toyota Camry Solara

1 Answer

Fuel pump not coming on,installed new one, white plug that has a yellow wire has 5 volts and ground is ok the 2 wires in the center shows 0

The plug you are referring to is probably the fuel tank pressure sender not the fuel pump. It would be plugged into a black sensor about 2 inches long pushed into a rubber grommet on the fuel bung. The fuel pump connector would have more that 2 wires going to it. most likely a heavy purple wire would be the power to the pump. It has to have 12 volts to it to work. The sender may have 3 wires, 5 volts, ground, and sense. the pump connector would have 12 volts, ground and 5 volts for the fuel gauge sender down in the tank.
If the 12 volts is not there, check the fuel pump relay. it is usually up on the drivers side firewall.
With the key in the on position without starting the engine, you should have 12 volts to the pump for 3 seconds then it will click off. Without cranking the engine you should be able to locate the relay by the clicking sound.
There is also the obvious, like checking the fuel pump fuse.

Jan 11, 2011 | 2003 Chevrolet Avalanche

1 Answer

No fuel pressure asd&pump relays energized

The fuel pump relay won't energize if the ignition is bad, or the fuel safety cut out is bad. Don't know what Dodge uses. Ford has an inertial switch in trunk. Many cars use the alternator. Some use extra wires to the oil pressure sender. Try looking at the wiring diagram on relay side, and jumper the outputs where relay plugs into, bypassing the relay completely. The pump should hum and you should get pressure. If not, make sure the tank isn't buiding up vacuum, and make sure the power and gound are good at the pump.

Mar 31, 2010 | 2005 Dodge Caravan

1 Answer


Some times the wires in the tank burn up,Have you checked for a blown fuel pump fuse?It would be a good sigh of this.The fuel pump grounds off the tank,the sender,grounds threw the other side of the in-dash gauge.I would look for the whole fuel pump ,and fuel sender to have burned wires inside the tank.

Oct 15, 2009 | 1998 Ford Explorer

2 Answers

Fuel sender fuse circuit blows fuse

This means that the Sender & or Fuel PUME are SHORTING to GROUND and Need Replaced

Aug 12, 2009 | 1998 Chevrolet S-10 Pickup

1 Answer

Replaced the fuel pump and filter still not starting

check for power to the pump first incase you have a fuse blown or a dodgy connection on the connector block onto the top of the pump/petrol level sender unit

Apr 11, 2009 | 2001 Chevrolet Tahoe

Not finding what you are looking for?
1992 Pontiac Trans Sport Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8826 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides