Question about 1990 Ford F150

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Loss in power and in gas mileage also engine runs a little rough during idle

2.3l with t5 transmission

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  • 305 Answers

Ok how is the fuel pressure ,what about the timing,do you have a clean air filter,while it is running move the plug wire to find were the miss is,is your egr valve working good,check your injectors to see if they are clog if you have a miss check that cylinder compression

Posted on Jul 07, 2014

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Posted on Jan 02, 2017

SOURCE: IDLES ROUGH LOSS OF POWER

just a guess but might be a fuel pump, try smacking the tank before you start it and see if it idles better after.

Posted on Aug 09, 2008

ourhowse
  • 2007 Answers

SOURCE: Rough Idol, Running rich, Burning gas, Smog smell

1. change air filter. 2 check timing. 3 check all fuel lines and connections for leakage. 4. dirty or clogged injectors.

Posted on May 02, 2009

  • 148 Answers

SOURCE: I have a 2006 F250, 6.0 diesel (power stroke) it

This is very complex system. Best to have it checked by qualified diesel mechanic who has the proper equipment to check out all the systems, that could be related to the problem you are having. Just to start throwing parts at it can become very expensive very fast

Posted on Feb 13, 2010

GARYca
  • 672 Answers

SOURCE: 2003 Ford Expd. running rough @ idle -

There could be many issues. These codes read your engine is running too lean. Check : all your vacuum hoses for leaks, PCV valve and hose, MAF sensor. This may require an experienced technician to figure this out. Hopefully I help'd!!

Posted on Apr 05, 2010

SOURCE: Ford F150 engine backfiring, running/idling rough

I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?

Posted on Oct 12, 2011

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Runs rough when it's warm. comes and goes. has a 2.7. and then a 99 dodge carvan with a 3.3 does the same thing.


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A rough engine idle can come from a variety of causes. During the winter months, cars may have a harder time starting and will shake when first turned on. This form of rough idle can easily be mistaken for other problems. Engine idle problems can also be attributed to malfunctioning components, such as spark plugs. Holes in the air intake valve can also cause a rough engine idle because of excessive amounts of air being drawn in.
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TRUCK DIED WHILE DRIVING


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