new to the 3.8 surge!!
new to the 3.8 surge!!
yeah..I have one of those, and just now finding out how common this is.. 01 firebird 3.8 surges at cruising speeds, increasing as temp. rises, and increasing load...
have replaced fuel pump/ filter, plugs, wires, ign. switch,crank sensor, o2, sensors, cleaned and tested EGR, also throttle body, and Im sure there's more I cant think of right now...
it sometimes feels more like its jumping in and out of overdrive?!,.??
was pulling a o2 code till they were changed, any ideas/ suggestions??
have replaced fuel pump/ filter, plugs, wires, ign. switch,crank sensor, o2, sensors, cleaned and tested EGR, also throttle body, and Im sure there's more I cant think of right now...
it sometimes feels more like its jumping in and out of overdrive?!,.??
was pulling a o2 code till they were changed, any ideas/ suggestions??
Member
Joined: Jul 2006
Posts: 304
Likes: 0
Car: 1987 Pontiac Trans Am
Engine: 350 Vortec
Transmission: 700R4
Axle/Gears: 3.42
Re: new to the 3.8 surge!!
yeah..I have one of those, and just now finding out how common this is.. 01 firebird 3.8 surges at cruising speeds, increasing as temp. rises, and increasing load...
have replaced fuel pump/ filter, plugs, wires, ign. switch,crank sensor, o2, sensors, cleaned and tested EGR, also throttle body, and Im sure there's more I cant think of right now...
it sometimes feels more like its jumping in and out of overdrive?!,.??
was pulling a o2 code till they were changed, any ideas/ suggestions??
have replaced fuel pump/ filter, plugs, wires, ign. switch,crank sensor, o2, sensors, cleaned and tested EGR, also throttle body, and Im sure there's more I cant think of right now...
it sometimes feels more like its jumping in and out of overdrive?!,.??
was pulling a o2 code till they were changed, any ideas/ suggestions??
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iTrader: (3)
Joined: Aug 2007
Posts: 181
Likes: 0
From: toledo, oh
Car: 1997 z28
Engine: lt1
Transmission: t56
Re: new to the 3.8 surge!!
in before lock... i know you tested the egr but this to me sounds like an egr problem. had this happen in an 85 vette i had. car would 'surge' from about 45 to 60, ran tests and concluded it was the egr valve, replaced that and the switch in it and the problem went away. at the least, you might want to take the valve off and clean all the passages to it. good luck!
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