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#1
03-19-2005, 05:44 PM
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engine check, rough idle, hard start, dies
99 Rodeo V6, engine light on, rough idle-the whole car shakes, but it's ok when you drive. when car is warm, car starts but dies after few second when rpm go up & down. What gives?
(went to Auto Zone for code check, P0171 & P0174 cylinder #4 misfiring) what's the likely cause - coil ignition, mass flow air sensor, bad intake gasket or others. (mileage : 86000) (changed Fuel filter today 3-20-05, the car is less shaky, engine light still on) where can i find a cylinder identification diagram online. Need to know which is #4. Last edited by 99rodeov6; 03-20-2005 at 03:56 PM. 
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#2
03-19-2005, 05:49 PM
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Re: engine check, rough idle, hard start, dies
Good chance you have a bad intake manifold gasket. Also, may be time for some new spark plugs, fuel & air filter, and a good cleaning of the EGR and throttle body. Replace the PCV as well.
My guess is that the IMG is causing this though. I had the same problem several months ago. It was a real pain to drive. Marc
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#3
03-19-2005, 09:25 PM
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How many miles on the truck will help?
marcre is on the right track. I offer this because it sounds identical to what I had at 30K miles. Rough idle. A new fuel filter and a can of BG44K fuel cleaner, and I was running great again. But, intake manifold is a common issue. I'm the least mechanically inclined person on the forum, so big grain of salt. Keep tuned, more advice from others is sure to come. Solster
__________________
1999 Isuzu Rodeo S 3.2L, 4x4, Auto, Great Truck!  2007 Pontiac Solstice GXP, Aggressive Red 
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