idleing issues
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Junior User
Joined: Nov 2006
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idleing issues
ok guys i need help!! i have a 89 f150 5.0L 5speed with a roller block, thumper heads roller rockers and stock intake set up with speed density. i put a cam in with 114 lobe center and 212 int dur at .050. the truck runs great!! but wont find a idle. it will search between 1000 and 500 rpms. somtimes it smooths out and idles great for a minute or two, then it will start searching again. ive cleaned out the throttle body and the idle air servo and it only helped alittle. before i start throwing parts at it has anyone rean into a problem like this, and what did you do to fix it? any info would help thank you!!
Thread Starter
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Junior User
Joined: Nov 2006
Posts: 50
Likes: 0
i forgot to add.. my base timing is sset at 15 btdc and i have a adjustable fuel pressure reg on it with stock 19lbs inj. not sure what the pressure is set at but ive moved it up and down and have it set where it isnt blowing black smoke and still drive good! thanks again.
