I'm inclined to agree with Fred. The EGR valve is acting up in my Z and the only time it affects the car is under load at low engine speed when trying to accelerate in too high a gear. At idle, fine. WOT, fine. In fact, anything above about 1800 rpm she's fine. Not blocking off the hole where the valve sits properly can cause the symptoms you mention...its called a vacuum leak, and a big one at that. In fact, the only time I've had the EGR system affect any of my 3 vehicles was on my Jeep when it was stuck OPEN, thus creating a vacuum leak. He idled like crap. However, since the valve under all conditions EXCEPT cruising, removing the valve and properly blocking it will give the exact same results as actually having it there.
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Steve
79 FSJ - most expensive AMC Jeep ever
Mods
87 GN - its just a 6...
Mods
93 Z28 - slightly tweaked
Mods
http://home.comcast.net/~budlopez
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Injuneer, your information seems to pertain to fourth generations w/ LT1. My information is for third generations w/ 305s and 350s. Sorry if there was any confusion1982 Trans am w/ t-tops
V8 5.0L 305 H out of an '86 Caprice
previous owners abused it!!!
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That's my whole point... you can't just slap the 3rd Gen info on a 4th Gen... doesn't help anybody. For Example, the intake manifold leak on the LT1 is a well-known problem among 4th Gen enthusiasts. Ken C. (Wolfman) wrote what is the definitive "fix" procedure at least 6 years ago, and it was "blessed" by a GM engineer. We don't just pull this stuff out of our anal orificesOriginally posted by Maverick_82
Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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Which, as Fred stated, is why he posted what he has. Look at the year of the car at the beginning of the thread. Obviously its not gonna have a 3rd Gen motor. Whether your info. is vaild or not on the 3rd Gen. is a different story, but the experiences you used to back up your standing have no relevance to the LT1. Also, you might want to specify which 350s your information is good for, since the LT1 is also a 350.Originally posted by Maverick_82Steve
79 FSJ - most expensive AMC Jeep ever Mods
87 GN - its just a 6... Mods
93 Z28 - slightly tweaked Mods
http://home.comcast.net/~budlopez
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Yep the car in Question is a 4rd gen LT1
thanks for all the info . The decision has been made to re-install the EGR equip...once again thanks to all who responded
1997 Trans AM WS6 vert
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