99rodeov6

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.

marcre

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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2007 VW Jetta 2.5 5sp


1999 Rodeo LS 3.2 4x4 SOLD, but not forgotten
My Rodeo

SOLSTER

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

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1999 Isuzu Rodeo S 3.2L, 4x4, Auto, Great Truck!
2004 Mazdaspeed MX-5 Turbo, Titanium Grey
2006 Pontiac Solstice, Mysterious Black