i has a problem with a ignition coil burning out, now it has a rough idle problem,i did a full tune-up--cap,rotor,wireas plugs--i changed tps switch by suggestion,i cleaned out the throttle body, i cleaned the idle air control valve,replaced egr valve----does any body have any ideas as to what is wrong or could this be a timing chain problem or a flat spot in cam--i need help!!! if i can't get any suggestions i guess i'll take it into a shop
92 ford bronco
- Thread starter rogmit
- Start date
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Check for any vacuum leaks. Checking the timing is a good idea, too.
Shadow_D
Active member
Welcome to the Zone! >
I am having a similar problem with my 351W.
I have replaced the Cap, Rotor, Plugs, Wires, Coil, Module and Timing Chain but it still runs like $hit under load (I.E. in drive) over 1500 RPMs.
I just pulled the Distributor and found the shaft seems too lose and there is about 1cm of play side to side at the bottom of the housing.
I bought a new distributor off eBay for $178.00. (Procomp HEI EFI Billet)
If I were you I would bull the distributor and inspect it very closely for play. Also look at the gear for excessive wear. If it is missing teeth or warn out pretty bad then I would say get a new distributor and also think about a new cam.
You may still want to replace the chain and gears as well.
I will let you know if the new distributor fixes the problem.
Good luck
I am having a similar problem with my 351W.
I have replaced the Cap, Rotor, Plugs, Wires, Coil, Module and Timing Chain but it still runs like $hit under load (I.E. in drive) over 1500 RPMs.
I just pulled the Distributor and found the shaft seems too lose and there is about 1cm of play side to side at the bottom of the housing.
I bought a new distributor off eBay for $178.00. (Procomp HEI EFI Billet)
If I were you I would bull the distributor and inspect it very closely for play. Also look at the gear for excessive wear. If it is missing teeth or warn out pretty bad then I would say get a new distributor and also think about a new cam.
You may still want to replace the chain and gears as well.
I will let you know if the new distributor fixes the problem.
Good luck
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