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New Engine Problem

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Old Jul 29, 2007 | 10:27 PM
  #1  
kuulkatdadieo's Avatar
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From: Tennessee
Car: 1989 Pontiac GTA
Engine: 350 5.7 T.P.I.
Transmission: TH 700-R4
Axle/Gears: 3.27
New Engine Problem

As the title reads, I got a rebuilt engine put in and I got a problem. It's a TPI 350, just like what was in it. It idles great no problem there, but when you give it a little bit of gas to take off, it lowers the rpms about a 100 rpm and then your reaction is to give it more gas and then it is fine. Cruises fine and everything, after that. I don't think it would die but acts like it wants to. In takers to solve my problem. THANKS
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Old Jul 29, 2007 | 11:12 PM
  #2  
91 camaro racer's Avatar
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: New Engine Problem

maybe running a little rich and it bogs down? also check your timing.
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Old Jul 30, 2007 | 06:05 AM
  #3  
SpitotRs305's Avatar
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: New Engine Problem

what cam are you running? what stall?
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Old Jul 30, 2007 | 01:39 PM
  #4  
kuulkatdadieo's Avatar
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From: Tennessee
Car: 1989 Pontiac GTA
Engine: 350 5.7 T.P.I.
Transmission: TH 700-R4
Axle/Gears: 3.27
Re: New Engine Problem

Originally Posted by SpitotRs305
what cam are you running? what stall?
As far as I know it's a stock cam and a stock converter.
----------
Originally Posted by 91 camaro racer
maybe running a little rich and it bogs down? also check your timing.
What would exactly make it run rich, and I will have my local mechanic check the timing this week.

Last edited by kuulkatdadieo; Jul 30, 2007 at 01:40 PM. Reason: Automerged Doublepost
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Old Jul 30, 2007 | 02:19 PM
  #5  
91 camaro racer's Avatar
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: New Engine Problem

check the fpr if it is adjustable, o2 sensor.
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Old Jul 30, 2007 | 09:12 PM
  #6  
kuulkatdadieo's Avatar
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Posts: 452
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From: Tennessee
Car: 1989 Pontiac GTA
Engine: 350 5.7 T.P.I.
Transmission: TH 700-R4
Axle/Gears: 3.27
Re: New Engine Problem

Thanks,
Yea I'am dropping it off at the mechanic and he said exactly what you said. That it might be the O2 sensor or the fuel system. Thanks again and I'll give you guys the results after tomorrow.
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Old Jul 31, 2007 | 12:09 AM
  #7  
91 camaro racer's Avatar
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Joined: Jun 2005
Posts: 1,245
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: New Engine Problem

yeah let us know what it was.
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Old Aug 1, 2007 | 08:21 PM
  #8  
kuulkatdadieo's Avatar
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Joined: Nov 2006
Posts: 452
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From: Tennessee
Car: 1989 Pontiac GTA
Engine: 350 5.7 T.P.I.
Transmission: TH 700-R4
Axle/Gears: 3.27
Re: New Engine Problem

Well, it turned out to be the TPS sensor. I told him to go ahead and put it in, because I know those things are real touchy. But, yea the problem is totally fixed and will lay rubber like nobody's business. I'am very glad to see the full potential of my new engine and can't wait to drive it some more. Thanks guys, especially 91 camaro racer, I appreciate it. THANKS
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Old Aug 1, 2007 | 09:07 PM
  #9  
91 camaro racer's Avatar
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Joined: Jun 2005
Posts: 1,245
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From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: New Engine Problem

no problem man we are here to help others like you.
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