oil consumption and irregular idle, intake gasket?
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 522
Likes: 0
From: Michigan
Car: '88 Red Trans Am w/ T-tops
Engine: 305 TPI
Transmission: T-5
oil consumption and irregular idle, intake gasket?
My TA has consumed about one qt. in 1500 miles and idles irregularly. There is also small amounts of oil that collects where the heads meet the intake manifold. Does this sound like a bad intake gasket?
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Make sure you are not leaking at the valve cover gasket, which is common. As for the intake gasket, it's entirely possible there's a leak there. Spray some carb cleaner around it and listen for the idle to smoothen out.
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
I am having this problem also. What intake are you using? Checking the intake gasket is a good idea. Try switching to a good Fel-Pro or other gasket.
Supreme Member
iTrader: (9)
Joined: Sep 2001
Posts: 2,984
Likes: 37
From: North Central Indiana
Car: 86 IROC
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.54 Dana 44 IRS
check my reply to this post. i have had this problem, and so have many others. read this and see what you think.
https://www.thirdgen.org/techbb2/sho...hreadid=259054
https://www.thirdgen.org/techbb2/sho...hreadid=259054
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 522
Likes: 0
From: Michigan
Car: '88 Red Trans Am w/ T-tops
Engine: 305 TPI
Transmission: T-5
i haven't really noticed any oil burning out the exhaust. I am pretty sure it is the intake manifold gasket though. I'll take care of it this fall when i put it in storage. Thanks for all the help.
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