Need help now all suggestions wanted!!!

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Jan 20, 2006 | 10:00 PM

89jake

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Need help now all suggestions wanted!!!

I have an 89 f150 with a 300 six cyl and has ran good for a long time until recently, the truck bareley starts, runs at 500 rpm and misses alot. I need my baby back and need suggestions! it has new fuel pumps and senders, relatively new filter, capped egr, and new tps sensor. What should i do?

Jan 20, 2006 | 10:01 PM

89jake

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forgot to say

forgot to say it has new distributor cap wires plugs rotor and module and sender!

Jan 20, 2006 | 10:03 PM

havi

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did this all happen right after replacing the dist. stuff?

Jan 20, 2006 | 10:06 PM

89jake

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not exactly it ran good for about 5-600 miles then it lost all power, wouldnt hardly move and was real loud, then it sat a few days and now it does this, i capped the egr and it did nothing

Jan 20, 2006 | 10:09 PM

havi

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sounds like a timing issue. Do you have a code scanner?

Jan 20, 2006 | 10:13 PM

89jake

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yeah but why would the timing just, go untimed while sitting

Jan 20, 2006 | 10:25 PM

havi

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it wouldn't unless mice ate a piece of wiring. But it could possibly be the timing belt itself. take the dist cap off and crank the engine and see if the rotor moves, and see if there's play in the dist. shaft. Secondly, check your vacuum with a gauge if ya got one, thirdly check your compression on all cylinders. If these are all normal then it's probably a sensor giving a false reading and the ecm is trying to compensate for it. I had a 2.9 Bronco II that did the same thing, and there was an electrical connector that had to be disconnected and reconnected to reset the ecm's timing memory. This was after I replaced the entire engine(since it had to learn the timing all over again) But a scanner should tell you where to start.