Straight 6.
My truck will run but upon acceleration it acts like it is starving for fuel.
It has two tanks. It acts the same on both tanks. I has hesitation a month before but it was cured with Murrey's and a higher octane gas. The problem got real bad in a rain storm blowing side ways. My father said that the wires got wet......once they dried I trucked on but still hesitating just not as bad.
When it happened I was on a long trip and stopped to get gas and then drove in heavy wind and rain then all of a sudden in overdrive 5th gear it acted as if it was choking out or my transmission was going out.
Since this started I have replaced rotor cap and plugs and new wires. New fuel filter. Oil change. Several people have rode in it and said it is the injectors and the last guy to look at it said if it was his he would start replacing parts and he was not sure of the cause of the problem. Which he said is bad.
I use the Murrey's fuel additive. Plus I ran b12 chemtool through it just recently.
Again it is running good then it will hesitate lose power I am having to stretch out my gears to have enough power to get into the next gear without hesitation.
This truck has 180,000 miles on it.
Any ideas on what to change out next?
Thanks
Look at the EGR valve.it should move freely..listen for hissing sound of an air leak,from the intake manifold...with that kind of mileage,it is likely .check the wiring on all the sensors,the map ,air flow,coolant temp,and the idle air speed controller on the throttle body.
Sounds like you have a rust out hole in one of your gas tanks and rain water is getting into one or both tanks. Such rust holes in the fuel tanks in Ford trucks series F150 through F350 is a common problem. Inspect both tanks for rust out holes and rain water getting into your tanks. The best way is to drop down both tanks for a proper inspection of both tanks OR you can simply fill both tanks with gasoline to full to the top and watch for gas leaking out of them and dripping or running onto the driveway or ground. I have replaced many gas tanks on Ford trucks, they never undercoated thier tanks or painted them with a rust preventative paint like I do when replacing both tanks with new ones!
ENGINE HESITATES WHILE ACCELERATION
LOSS OF ACCELERATION
It
can be fuel pressure issue or it's the problem with accelerator pedal or its
clogged filters causing there.
There
are many other possibilities. I suggest you to go through the list of help
links mentioned below, these will help you to confirm where the actual fault
lies: -------
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http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html
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http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html
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http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html
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http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html
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http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html
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http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html
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http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html
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http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html
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http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
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http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html
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These details will help.
Thanks.
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