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Mikee
Anonymous Poster
mkje@verizon.net

Jun 22, 2009, 11:47 PM

Post #1 of 4 (1465 views)
Please Help Sign In

I have a 1988 GMC C-1500 2wd with a 4.3L TBI. I had a re-manufactured engine installed about 4 years ago from Advance Automotive Ind. It now has approx. 35,000 miles on it. Fuel pressure is steady at 12psi. The problem started when used to drive it all the time it seamed as though it was loosing power. Now that it has sat for a year it idles fine and runs normally until you put it in drive the truck does not go more than 10 mph and it sound like its sucking in allot of air. A very loud sucking sound. All vacuum lines seem to be fine. Where should I go from here?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 23, 2009, 12:16 AM

Post #2 of 4 (1462 views)
Re: Please Help Sign In

It sounds like you may have a plugged up Catalytic Converter. The easiest way to determine that is to just disconnect it from the manifold and run it temporarily and see if the power comes back.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Mikee
Anonymous Poster
mkje@verizon.net

Jun 23, 2009, 9:35 PM

Post #3 of 4 (1455 views)
Re: Please Help Sign In

I replaced that aprox 2 years ago so I never though but sure enough when I took it off it was a mess and the power is back. Thank you very much.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 23, 2009, 9:39 PM

Post #4 of 4 (1452 views)
Re: Please Help Sign In

Glad I could help



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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