Question about 1990 Ford F250

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1990 ford 4x4..Truck performs better in front tank and poor bogging inrear..but also in front at times(under a load)?

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Change your fuel filters.

Posted on Mar 15, 2011

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Posted on Jan 02, 2017

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1990 camry timing mark keeps moving


How much? And is it accompanied by poor performance, hard starting or bad economy? You can expect the engine timing to move about under control of the ECU, which is reacting to temp, load, throttle, and sheer bad temper.

Mar 09, 2014 | 1990 Toyota Camry

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Poor fuel economy on a 2008 Chevrolet 2500 HD ltz, 4x4 Duramax


Sounds like an overrun sprag problem or torque converter problem. Perform an OBDII scan for any transmission faults. The ECU controls some trans functions. In your comparison, did both trucks have same transmission( Allison, Hydramatic) ? Did they both have same rear axel ratio?

May 22, 2017 | Cars & Trucks

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Made rear tank my primary tank do i have to reset fuel pump button?


you shouldn't have to re set any thing when you switch from front to rear under the truck look about Ware the seat is you will find a possition switch try tapping it it you don't use this all the time thay tend to hang up try switching from front to rear to loosen it up hope this helps good luck

Apr 24, 2011 | 1990 Ford F150

1 Answer

I have a 1990 f150 4x4 with dual tanks. when did ford stop having the high pressure rail fuel pump. I was told 1992 but the parts store told me they show only intank furl pumps for my truck. What is...


I have the same truck as you. Mine has the pumps inside the tank also. If both tanks stopped working at the same time, you might want to check your tank selector switch. I've had 2 of them go bad in the 6 years yhat i've had this truck.

Mar 29, 2010 | 1990 Ford F150

1 Answer

Ford F150 1990 truck - Gas was leaking from the front tank. Replaced the grommit and now it is pulling the gas from the rear tank to the front an overflowing out of the nozzle where the gas cap is.


You definately need to get the truck serviced soon. To just guess at it, the balance pump isnt shutting down. The guage may not connected or moving freely.

Jun 18, 2009 | 1990 Ford F150

1 Answer

1990 ford f150 has dual tanks. gas pumps from rear tank to front


See these two threads for more info, I've heard of this happening before, in fact at one time there was a recall from Ford regarding this exact issue - http://www.fordf150.net/forums/viewtopic.php?p=227833 - http://www.fordf150.net/forums/viewtopic.php?p=46861

Feb 12, 2009 | 1990 Ford F150

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95 chevy k3500 will not shift into 4hi


Hi ..i had the same same problem in my k3500,check 4x4 fuse first .if thats blown replace it if blows when you put in 4x4 go under the car and unplug the actuator at the front diff.go back in the cab and put another fuse in, shift into 4x4 if the fuse does not blow this time you will need a new actuator.
thats what happened with mine and now 4x4 is sweet.i thought mine worked to at the start until i got bogged and noticed my front wheels wernt turning.

Jan 24, 2009 | 1995 Chevrolet K3500

1 Answer

1988 F250 4x4 Rear gas tank leaks when full. Looking for photos or diagram of installation of rear tank parts and tank


Changed both tanks in my 90 F-250 4x4 last year. Get a repair manual Haynes or Chilton, for $20 or so online or at parts store. I have both which have good diagrams and tips for gas tank replacement and everything else. Some big parts store chains have some of this info online.
Gas is to $$$$$ to leak any, besides, you don't want to blow up when someone throws a cigarette under your truck.. good luck, countrycurt0

Aug 09, 2008 | 1990 Ford F250

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