Question about 1985 Chevrolet Chevy

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Cannot switch gas tanks, have replaced the switch and the pump under the cab. I don't know where to look next. Any help is appreciated! Thanks!

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  • 39 Answers

Check the wiring

Posted on Nov 11, 2010

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After running for 10 minutes or so, the car dies...acts like it not getting enough gas...let it cool down and it will run fine for onther 10 minutes or so...1987 volkswagon cabriolet ...any suggestions


This vw has two fuel pumps one low pressure pump in tank and one high pressure pump under car make sure both are getting power and both are pumping, next try switching out the coolant temp sensor for the computer. The old vw cis fuel injection systems are very complex, so if you don't know what it is don't touch it get a book or better on old vw mechanic! ; )

Aug 07, 2011 | Volkswagen Cabriolet Cars & Trucks

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1996 Ford F-350 460 gas engine. Stalls while going on road,either tank. I've replaced fuel filter, and fuel pressure regulator. It will start right away, usually.


I'd check the manual transfer valve on the dash. They have a tendency to go bad after awhile. Cause 1000 different symptoms, and be the last thing checked/replaced. It's probably the cheapest place to start. The pump under the driver's feet is usually the last one to go in my experience, but the secondary culprit is normally the main pump in the rear tank.

Next time it tries to stall, toggle the fuel switch and see what happens. Same with a hard start. Back and forth a few times quickly.

Hope this helps.

Mar 06, 2010 | 1997 Ford F350 Crew Cab

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1986 f-150 not getting gas


is the fuel pump switch inside the cab tripped or has burned connector?

Sep 02, 2009 | 1986 Ford F150 SuperCab

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Need to find the fuel pump for a 1989 mercedes benz 300e


that particular model has an external fuel pump
is located underneath and if you take the rear driver side wheel you will get to it easier but not if you are going to replace you fuel pump replace the fuel filter also or otherwise the new pump will not last.
and have a large container handy because wend you take the fuel pump off. you will spill a large amount of gas .
the tube going from the pump to the gas tank in on the bottom of the tank and will spill all the gas in it unless you move quickly.

Jun 29, 2009 | 1989 Mercedes-Benz 300-Class

2 Answers

When I switch from my front fuel tank to my rear tank gas stops


There is no selector valve on a 1995 ford f150 300 engine. The selector switch on the dash sends power to the pump in the selected tank. The pump then sends fuel to the engine. If engine won't run on the selected switch, the pump in that tank needs replaced.

Mar 28, 2009 | 1995 Ford F150 Styleside Regular Cab

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1998 Mercury Grand Marquis Fuel Pump Replacement


you can try just resetting the fuel pump switch located in the car

the switch is originally in the car for in case of an accident, however, if changed, chances are you also have to reset it

in my 98 grand marquis, the switch is on the left side of the trunk

Jan 09, 2009 | 1983 Mercury Grand Marquis

2 Answers

Vehicle will not start after replacing fuel pump and gas tank


did u check the fuses? A gas pump has a fuse, maybe u blew it, check that first.

Oct 23, 2008 | 1993 Buick Century

2 Answers

Fuel system


Have the same problem, its the switch valve, not sure how to fix it yet. But i can tell you thats what it is.

Oct 06, 2008 | 1996 Ford F150 Regular Cab

1 Answer

Need info on fuel pump for 1985 iroc z 28 camaro


Hi David & Debbie!

You are correct, the pump is in the gas tank.

Occassionally (very rarely), you might find an access hatch in the trunk floor, but don't count on it.

As this is an electric pump, you also need to check items like fuses and fuel pump relays, and an Auto Supply expert can help you with that. You can also determine whether the pump is running by removing the gas cap and putting an ear to the opening while someone switches the ignition key off and on. You should be able to hear faint electric motor noise if the pump is running.

To get to the pump, remove as much gas as possible from the tank (to lighten the load when the tank is loosened), locate the two metal straps that hold the tank up, and find the tightening nuts and bolts at the rear edge of the tank. Arrange some kind of support (preferably a floor jack) under the tank and loosen the strap bolts... the tank will lower. Once these bolts and straps are separated the tank can be lowered enough to give you access to the top and the fuel pump/gas gauge sending unit. There is a locking ring that must be loosened and this is done with a hammer and screwdriver or chisel, turning it counterclockwise. Remove the fuel lines and wiring (remembering what goes where) and then remove the pump assembly.

Reassembly is the above in reverse order.

Hope this is illuminating and helpful, don't hesitate to ask if you have further questions or comments, and please be so kind as to rate my assistance. Please let us know how it goes, and best of luck!

Thanks!
-WildBill

Jun 18, 2008 | 1985 Chevrolet Camaro

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