High revving when started
07-17-2016, 05:42 AM
#16
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
I know threads old but others will have same issue. Manifold no seated hung up on dowel pins look from underneath....
http://www.jeepforum.com/forum/f9/en...fused-1151468/
http://www.jeepforum.com/forum/f9/en...fused-1151468/
Last edited by freegdr; 07-17-2016 at 05:51 AM.
07-17-2016, 07:45 AM
#18
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Year: 1998
Engine: 4.0L 162,000
I put small wire ties on all vacuum connections.
I agree take off each vacuum line and plug both sides and try and start. If goes to 6000, replace, zip tie and try another vacuum line.
Don't forget the rubber elbow connecting the MAP sensor, they often are cracked.
My money is on the intake manifold leaking from when he installed new head and intake.
I agree take off each vacuum line and plug both sides and try and start. If goes to 6000, replace, zip tie and try another vacuum line.
Don't forget the rubber elbow connecting the MAP sensor, they often are cracked.
My money is on the intake manifold leaking from when he installed new head and intake.
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