Kmack23
NAXJA Forum User
- Location
- Kansas City
First off I have searched the forums for an issue like mine but haven't quite come up with anything, some are similair in nature.
I have a 99 XJ with a wierd "start up' issue. When I start it up it fires right up and runs\idles fine. After about 45 to 60 seconds it will start bucking, bad hesitation, etc. After about a minute of this sometimes butterflying the accelerator, stomping on the gas, it comes out of the up and down hesitation, bucking. The issue completly goes away and the XJ runs fine, actually great until the next time I turn it off. This happens every single time I start the Jeep. It doesn't matter if it sits for 5 minutes or 5 hours. So I know it isn't a cold start issue. I've run into a convience store for a few minutes and it will start this all over again and the vehicle is still warm (operating temp). I've tried a new Map sensor, cleaned the IAC (carbon build up), new plugs, wires and cap. It shows no check engine light on the dash. The jeep is high mileage but runs perfect other than this??
Anyone have an idea what this would be???
I have a 99 XJ with a wierd "start up' issue. When I start it up it fires right up and runs\idles fine. After about 45 to 60 seconds it will start bucking, bad hesitation, etc. After about a minute of this sometimes butterflying the accelerator, stomping on the gas, it comes out of the up and down hesitation, bucking. The issue completly goes away and the XJ runs fine, actually great until the next time I turn it off. This happens every single time I start the Jeep. It doesn't matter if it sits for 5 minutes or 5 hours. So I know it isn't a cold start issue. I've run into a convience store for a few minutes and it will start this all over again and the vehicle is still warm (operating temp). I've tried a new Map sensor, cleaned the IAC (carbon build up), new plugs, wires and cap. It shows no check engine light on the dash. The jeep is high mileage but runs perfect other than this??
Anyone have an idea what this would be???