00" grand cherokee "limited" 4.0 semi-rough idle.
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Model: Cherokee
00" grand cherokee "limited" 4.0 semi-rough idle.
166,000 miles.changed the plugs out with champions 5k miles ago.im getting 19.1 mpg mostly city. But at idle the jeep from the inside idles a little rough and the rpms's bounce 100-150 some.Never replaced the coil if that could help. Ive ran injector cleaners,seafoam etc no help. and i hear a steady whoosh (2 wooshs a sec?) sound coming from back of the engine on passenger side. im wondering if its a sticky valve or something. I actually got another coil for it today for 40.00 at a salvage yard(jeep only had 32k miles on it and it was totaled/demolished) and was thinking about changing the plugs to ngk v-powers since i have the coil off. I have the powers in my lumina and dodge ram and i love em..
any idea's???
EDIT : fixed. Whoever my wife took the jeep to have it fixed didnt adjust one of the plugs right,it was 60 instead of 35
any idea's???
EDIT : fixed. Whoever my wife took the jeep to have it fixed didnt adjust one of the plugs right,it was 60 instead of 35
Last edited by chris015; 11-20-2009 at 05:29 PM.
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