Question about 2001 Isuzu Trooper

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Why does my isuzu trooper 3.5 run at 1600 revs ticking over when warm

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The idle is controlled by a TPS-throttle position sensor, and when it goes out, this is one of the signs, the other sign is that it will not idle. The TPS is located on the throttle body, and is attached with a couple of screws and has a plug in. I would recommend that you unplug, and replug the TPS before buying a new one, as they can lose connectivity. If that does not work, then I would recommend that you get a new one. You can pick one up at any auto parts store.

Posted on Mar 21, 2011


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