Exhaust Manifold is Overheating
Thread Starter
Junior Member
Joined: May 2011
Posts: 20
Likes: 0
From: Houston, Texas
Car: 1987 Red GTA Trans Am
Engine: 350 TPI
Exhaust Manifold is Overheating
I have an 87 GTA, 350. I finally got the car running really good yesterday and I've driven it about 4 or 5 times since then with it running that well. This morning I took it to walmart and it driven the same there but on the way back it has trouble advancing and when you push the gas the car barley goes somewhere until you let off and let it change gears. This has happened 3 times and everytime it happens, the exhaust manifold smokes on the drivers side. Does anyone have any idea at all? I know I need to change my oil soon.. would that make a difference? I'm just clueless and some help from ya'll would help a lot. Thanks
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Exhaust Manifold is Overheating
late ign timing
what code??
what code??
Thread Starter
Junior Member
Joined: May 2011
Posts: 20
Likes: 0
From: Houston, Texas
Car: 1987 Red GTA Trans Am
Engine: 350 TPI
Re: Exhaust Manifold is Overheating
havent check the codes yet but I timed the car yesterday, adjusted the idle and changed the ignition coil
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Exhaust Manifold is Overheating
how did you time it EST bypass disconnected (tan wire w. brown connector)???
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Exhaust Manifold is Overheating
yes, near the blower motor. What did you set the timing at?
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Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Exhaust Manifold is Overheating
no, that would not make the exhaust manifold smoke, the exhaust yes (esp. on startup)
Do you have an IR temp gun to measure the manifold temps L & R?
Do you have an IR temp gun to measure the manifold temps L & R?
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Exhaust Manifold is Overheating
pull the code, that may be a good indicator.
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