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From: Joseph Wind on 29 Jan 2007 17:58
Had the same exact problem on my 86' 22R. Revved up fine in park, but when
put in to drive it started knocking like a diesel at speeds above 35mph. I
thought it was the transmission, it's an Automatic, BTW. Someone suggested
replacing the CAT after it barely passed SMOG. Worked like a charm until
one of the chain guides broke and had to rebuild the entire timing assembly.

"Bonehenge" <DwightSchrute(a)DunderMifflin.com> wrote in message
news:ti4pr2tcasf03fsqnqrr8a26doppr60jpd(a)4ax.com...
> On Sat, 27 Jan 2007 20:40:52 -0500, "boobooboo" <chiptime(a)aol.com>
> wrote:
>
>> hi folks, i'm trying to help my brother in N.C. he can't work if he
>>doesn't get this truck running . i'm in N.Y. trying to help him by phone.
>>well here goes. the engine has 125k on it but always ran fine. starts up
>>o/k , idles o/k has no power on accel. to keep it from stalling or to help
>>it get going one must pump and feather the gas to help it along.
>>* did fuel pump
>>* new fuel filters
>>* carburator reman. 1.5 yrs ago
>>* checked for vacuum leak ( engine stalls quickly when carb. is covered
>>with rag )
>>* messed with timing to see if it made a difference. no change really
>>* sometimes a small backfire can occur when trying to pump and feather gas
>>?
>>* it sounds like it could be a carb. problem but i'm trying to give him
>>other things to check before purchasing another one ?
>>
>> any help would be greatly appreciated
>
>
> How's the cat? I've seen cat converters melt down and plug up.


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