V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Lost Power

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Old Jul 31, 2008 | 03:02 PM
  #1  
elzaco29's Avatar
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Lost Power

i own an '88 camaro with a 2.8L. the engine loses a significant amount of power after it has warmed up; if feels as if im dragging a boat behind me. also, every now and then the trans shifts late into second and third gear. other than these things, the car runs like a dream.

is there anything i can do about the first problem or is that just normal for these 2.8L engines?

as for the second part, is it a trans problem or do you suppose the computer chip is malfunctioning?

Thank you to anyone who can help me! ;D
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Old Jul 31, 2008 | 05:34 PM
  #2  
IROCtheThird's Avatar
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From: Northeast CT
Car: '89 IROC-Z
Engine: LSx
Transmission: T-56
Axle/Gears: 3.42
Re: Lost Power

I'd say do the basics, check all your vaccum lines, filters, plug gaps, injector cleaner. Normally once there warmed they usually dont perform as well, but if its as significant as you say then just start pokin around. How many miles does it have? As for your tranny I'm not the best source but has it ever had a transmission flush? How does your fluid look? Is it low?
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Old Aug 12, 2008 | 09:01 PM
  #3  
elzaco29's Avatar
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Re: Lost Power

sorry for the late response, went camping for a while....

i'll do the best i can for now. not much money to spare right now with tuition and all. you're info will deff help push me in the right direction.

thanks!
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Old Aug 14, 2008 | 04:37 PM
  #4  
jon 89 RS's Avatar
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Joined: Dec 2007
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From: Roswell,NM
Car: 89 camaro rs
Engine: 2.8L
Re: Lost Power

yeah i've sort of noticed that on my 2.8 as well, but the loss of power isn't that significant.



so is this normal? and why?
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Old Aug 14, 2008 | 05:20 PM
  #5  
2.8RS's Avatar
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From: Tallahassee, FL
Car: 89 V6 Camaro
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42 open diff
Re: Lost Power

Originally Posted by jon 89 RS
yeah i've sort of noticed that on my 2.8 as well, but the loss of power isn't that significant.



so is this normal? and why?
The motor goes into closed loop once it warms up. Once it warms up the O2 starts to monitor the air/fuel mix in the exhaust so your injectors aren't dumping fuel into your engine anymore. Mine runs rich so I don't notice much of a difference at all.
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Old Aug 14, 2008 | 06:31 PM
  #6  
Gumby's Avatar
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Joined: Oct 2001
Posts: 8,113
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: Lost Power

What are your water temps???

Mine use to get real sluggish when it got warm, till I got my temps under control. 185-190 is the best, once ator over 200, things go down hill.
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