Sounds to me like you have a clogged converter ...Or there is some sort
of restriction in Bank 2....Try disconnecting you exhaust for a bit then
run your engine untill it gets to opersting tempature if it doesnt
misfire then you solved our problem.....
Re: 1996 Tahoe (R series) miss fire (2,4,6,8)
Group: alt.autos.4x4.chevy-trucks Date: Wed, Mar 3, 2004, 10:51am
(CST+6) From: firstname.lastname@example.org (jdoe)
Vacum leak on that side?.
I have a 1996 Tahoe Vortec 5.7 Liter (R series motor) that I am having
trouble with a miss fire on the even bank. This happens when the vehicle
warms up. When you start it cold it runs like the best vehicle in the
world once it reaches mid point between 100 and 210 on gauge it will
start miss fire. I have changed the plugs twice. Plug wires Twice, cap
twice, rotor twice, I had the injectors cleaned, replaced fuel pressure
regulator, 4 O2 sensors, and even swapped the ECM out made no
difference. The distributor is lined up with the marks from factory. As
I said starts and runs fine when it is cold. Does any one have any
Ideas. I am at a loss. I have had a New transmission installed. It could
be a coincidence but it may have started this at the same time. As the
check engine light was on when transmission went out because of rear
wheel speed sensor. I have a bunch of miles on it but when it was
running right it got great gas mileage and burns no oil.