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View Full Version : Bogging down at deceleration..



WillCherokee
08-30-2016, 11:13 AM
I have a 91 XJ/4.0. When driving, it drives and shifts normal but when I come to a stop or begin to slow down, the RPM start to decrease alot. Even gets to the point to where it actually dies slowing down or when I stop. I'm not sure what it is but im guessing vacuum line but not sure where to start...do you guys?

4.3LXJ
08-30-2016, 01:37 PM
Does it idle normally otherwise

WillCherokee
08-30-2016, 03:14 PM
Yes it does.

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4.3LXJ
08-30-2016, 03:15 PM
i am thinking your throttle position sensor may be the culprit