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UGATruck · 06-28-2006, 04:20 AM

I just got done fixing this same problem on my 94 pickup. The idle was ok, but I could get out and run faster than it could get up and go. It was ALL due to my TPS. If the TPS isn't set correctly, then it is impossible to set the timing correctly.

When I finally got my TPS adjusted, my timing was so far off I couldn't even see what it was reading. Re-adjusted the timing and the thing runs like never before. It's wonderful!

The key for me in adjusting the TPS was the trick on page 5 of theThrottle Body section of the Factory Service Manual If you look at (4)(b)-(d), you'll see how to correctly set the TPS. If you get (4)(b) right, then all the other tests are just for verification.

Hope this helps. Of course, I did not have valve chatter so that might be something else.

06-28-2006, 04:20 AM	#18 (permalink)
UGATruck Registered User Join Date: Jun 2006 Location: Chattanooga, TN Posts: 13	I just got done fixing this same problem on my 94 pickup. The idle was ok, but I could get out and run faster than it could get up and go. It was ALL due to my TPS. If the TPS isn't set correctly, then it is impossible to set the timing correctly. When I finally got my TPS adjusted, my timing was so far off I couldn't even see what it was reading. Re-adjusted the timing and the thing runs like never before. It's wonderful! The key for me in adjusting the TPS was the trick on page 5 of theThrottle Body section of the Factory Service Manual If you look at (4)(b)-(d), you'll see how to correctly set the TPS. If you get (4)(b) right, then all the other tests are just for verification. Hope this helps. Of course, I did not have valve chatter so that might be something else.