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I have a 1990 ford f-250 XLT lariat w/ a 5.0 I

I have a 1990 ford f-250 XLT lariat w/ a 5.0 I cannot locate where each vacuum line goes. I want to sell the truck but i dont want to sell it in non working condition

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
  • 76846 Answers

SOURCE: horn not working on a 2006 ford f250 xlt

The cause of this is not the horn or fuse in most cases, it is caused by the rotating contact that connects the horn button, in order to repair this you will need a new clock-spring contact, to install the airbag must be disarmed, his has to be done by the book or serious injury can result.

Posted on Nov 11, 2008

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savdragon
  • 37 Answers

SOURCE: can't find emergency fuel shutoff switch

The Inertia Switch is located at the far Left part of the toe-board, near the parking brake assembly.

Posted on Mar 18, 2009

  • 43 Answers

SOURCE: 1990 ford xlt lariat is idling high all the time

Hello sheritribbl

The most common problem on a Ford V8 truck is the intake plenum gasket has distorted and maybe causing a major vacuum leak. While idling listen for a high pitched hissing noise. Buy a can of oxygen sensor safe Carburetor Cleaner. With the engine idling, spray around the center of the top half of the engine until you notice a change in the sound of the engine. Keep spraying to try to isolate the source of the leak....Be careful an follow the directions on the can of carb cleaner as to safety precautions...

Posted on Apr 05, 2009

  • 1779 Answers

SOURCE: 1988 ford truck f-150 xlt lariat cant get current to fuel pump

Have you checked the 'inertia switch' which in the event of an accident shuts off the fuel supply to prevent a fire . It's usually located in the cab on pass. side. Some models have one reset button, some 2 which have to be pressed at the same time. If that's not it, here's how the power to the pump SHOULD work, you will have to follow the path to see where it stops. When you turn the key on it turns on the EEC power relay on, this relay then provides power to the PCM (power control module) and the control side of the fuel pump relay. Power for the fuel pump is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse current flows thru the fuel pump relay and inertia switch to the fuel pump. The fuel pump relay is controlled by the PCM. When the ignition switch is turned on the fuel pump will operate, if the switch is NOT turned to start position, the PCM will shut off the fuel pump off after 1 second. This is to avoid flooding the engine when it is not running, just key on. So check out to see if you have a fuse link or a high current fuse and if they are blown.

Posted on Apr 15, 2009

  • 30 Answers

SOURCE: 02 Ford Explorer XLT 4x4 High light flashes and

I had same problem on my 2002 explorer. Its either the computer module, or the electric solenoid on the transfer case. In my case it was both. The computer module I had done twice in 14 months.

Posted on Jul 04, 2009

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1 Answer

1988 ford xlt lariat 4x4 need to see how to route my fuel lines ,dual tanks


The original gas tank on a 1998 F-250 Lariat has a capacity of 30 gallons. Because there is no mention of dual fuel tank capacity available, the 2nd fuel tank was likely added after purchase. You would need to know the capacity of the fuel tank when it was installed. ----------------------------------------------------------------------------------------
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Jul 20, 2010 | 1990 Ford F250

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I need to find a fuse diagram for a 1990 ford f-150 lariat xlt


There should be one on the plastic panel under your steering wheel or is it missing?

Nov 28, 2009 | 1990 Ford F150

1 Answer

1990 ford xlt lariat is idling high all the time


Hello sheritribbl

The most common problem on a Ford V8 truck is the intake plenum gasket has distorted and maybe causing a major vacuum leak. While idling listen for a high pitched hissing noise. Buy a can of oxygen sensor safe Carburetor Cleaner. With the engine idling, spray around the center of the top half of the engine until you notice a change in the sound of the engine. Keep spraying to try to isolate the source of the leak....Be careful an follow the directions on the can of carb cleaner as to safety precautions...

Apr 05, 2009 | 1990 Ford F150

1 Answer

Can't find emergency fuel shutoff switch


The Inertia Switch is located at the far Left part of the toe-board, near the parking brake assembly.

Mar 18, 2009 | 1988 Ford F 250

1 Answer

Can't find replacement o-ring for 1989 f-150 5.0 psps


you can go to napa and buy a oring take the old one with you napa is the best

Feb 18, 2009 | 1990 Ford F150

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It uses too much fuel. 2,6 liter per 10 km.


You need to replace the sensors,,Throttle PositioningSensor, OXYGEN sensors, Mass Air Flow. after which your truck will run nicer and use less fuel.

Jan 16, 2009 | 1990 Ford F150

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