Question about 1989 Ford F 150

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My 1989 ford f150 is cutting out like its not getting enough fuel.I have replaced the fuel filter, gave it a full tune up and I cannot figure it out for the life of me. please help.

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If its the 1989 f150 fuel enjection its probley the fuel grade your runing mine bog downs when i run low test you prob need to try high test with no ethnoal

Posted on Feb 19, 2013

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Check fuel pressure see if the pump is bad,if pressure is good around 30-35psi,then it could be maf sensor.


Posted on Oct 23, 2010


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I have ford f150 1989 4speed manual 5.0. It's jerks I can't fix it. I have put 2 new fuel pumps,did the whole tuneup, new tps censor, new erg valve, new ignition coil,and it's still jerks.

Did you check the fuel pump pressure before and after the pumps ?
You'll have to figureout if it is a fuel or ignition problem.Isthe check engine light on ?
Usually a "jerking" engine is an ignition problem.
You have a distributor and an ignition module that could be the problem too.

Jul 01, 2012 | 1991 Ford F150

1 Answer

1989 f150 with a 300 6cyl.-truck has sat in storage for a couple years & we replaced cap rotor & plugs & the truck is still cutting out when driving like it is under powered

Sounds like a weak fuel pump.So i would check the fuel pressure first it should be 50-60 psi with key on and engine off and 45-60 psi with engine running.If its not within these specs replace the pump and filter.

Aug 04, 2011 | 1989 Ford F 150

2 Answers

I was going down the rd and my truck 1989 ford f150 just cut off on me and wont start is getting fire, its getting gas, its got compression, the engine turns over fine, but it wont crank up and...

Sounds like your approach has not been successful
because you change things in hope of a solution

You have to gather the facts based on what it does
or doesn't do,then do some testing on what does work
As your proceeding you will eventually find something
that isn't right. Maybe the fuel pump etc.

I don't mean to be negative toward you in any way,but
you need a good understanding of the basics and the
ability to use a volt meter etc.

When you say you have spark,gas etc,you may well have
But is it weak spark,is it correctly timed,is fuel pressure

For the future---forget the tune-up and spark plug thing
You could throw away one or two plugs and it would start

Mar 01, 2011 | 1989 Ford F 150

1 Answer

1989 ford bronco full size 5.0 New fuel pumps and pressure regulatorand relay. Still not getting fuel pressure. What else?

have you change fuel filter ? check lines to make sure they arenot pump working ,can hear it run ? do have enough fuel in it

Dec 21, 2010 | 1989 Ford Bronco

1 Answer

I have low fuel pressure when you put a load on it and it wants to backfire and bog down on a ford f150

Try replacing your fuel filter, it may be constricted. Do a tune up if you haven't done a tune up in a while. check your spark plug wires to make sure they're not arcing(do this at night with no light), start her up and see if the wires are not arcing current to the engine block, if so replace.

Nov 21, 2009 | 1989 Ford F 150

1 Answer

My 1989 ford F150 lariat cut off on me while I was going down the road. It is getting fuel but there is no spark coming from the coil wire. What could be the problem?

Has the truck had a tune up?
Check the TFI module or replace it should be bolted to bottom of distributor. Replace cap, wires, plugs, rotor button and coil.
(TFI modules during the 80's and 90's failed when it got hot.)

Apr 30, 2009 | 1989 Ford F 150

1 Answer

My 1992 Ford f150 failed emissions test co was to

theres 3 things ur emisans fail on 1 spark plugs 2 air filters need changing 3fuil filter so yes a full service should do it change ur oil fuil filter air filter oil filter and oil

Mar 04, 2009 | GMC Yukon XL Cars & Trucks

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