Question about 1990 Jeep Cherokee Limited

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I have a 1989 Jeep Cherokee Pioneer with 242k miles on it. In line 6, 5 speed manual, 4 wheel drive. I am having trouble with it starting the first time. When it does start it will idle high for about ten seconds. While going down the road the engine will die, being a standard though it cranks itself. I thought at first that my transmission was going out then it dawned on me what it was. I believe it is a vacuum problem but not sure.

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Mine also will quit going down the road, and idles high at times, or idles low, like having a mine of it's own. possibly idle air speed solenoid (which i replaced on mine) and still does this. another tech said only factory solenoid will "talk" to ecm properly?

Posted on Dec 31, 2010

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http://www.2carpros.com/car_repair_information/year/1989/make/jeep/model/cherokee/1989_jeep_cherokee_drive_belt_routing_diagram.htm

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