Isuzu Trooper 2002, rough idle

QUINCEY

MEMBER
2002 ISUZU TROOPER
15,000 MILES

Whenever my trooper is in idle, like say a stop light the engine shudders like it's about to kill. While on the freeway it has a hard time switching gears as well as some shuddering and a high pitch squeal. Is it the transmission or an O2 sensor, a fuel injector or a bad vacuum pump? I can't put my finger on it.

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Sunday, May 20th, 2012 AT 12:44 AM

1 Reply

RASMATAZ

MEMBER

Check the EGR valve if its closing properly and also the idle air control valve clean it and see what happens

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Sunday, May 20th, 2012 AT 1:38 AM

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