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Old 11-05-2010, 10:24 AM   #1
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we're new at this

My son (17) purchased a 1997 Wrangler with a small 4 cylinder. She ran real well for a while but now seems to be revving at 1200 vs the 900 she was before. This causes the auto trans to shift hard from park to drive. Today he told me the check engine light just came on. Any ideas of where to begin our troubleshooting? Lots to learn since we never owned a jeep before.

Bill V

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Old 11-05-2010, 10:48 AM   #2
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what code is it showing?

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Old 11-05-2010, 12:10 PM   #3
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Check your vacuume lines. I'd wager one of em is leaking.
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Old 11-05-2010, 08:12 PM   #4
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Code?
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Old 11-05-2010, 08:14 PM   #5
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Code?
I'm guessing it's OBDII. Go get a reader and plug it into the socket by the steering wheel. It will tell you all kinds of fun trivia...

(Someone correct me if it's not OBDII... Thanks!)
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Old 11-05-2010, 08:18 PM   #6
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I'm guessing it's OBDII. Go get a reader and plug it into the socket by the steering wheel. It will tell you all kinds of fun trivia...

(Someone correct me if it's not OBDII... Thanks!)
My 2000 is OBD II, FWIW.
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Old 11-05-2010, 08:27 PM   #7
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yes its obd2
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Old 11-06-2010, 10:35 AM   #8
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The code was P0123, then they looked it up and told me it's a Throttle position sensor. Easy enough, I wnt to the local dealer, gave them the vin number and he told me there is no TPS showing for that number and none in stock. Advanced Auto looked up my year, and info and showed one but comparing the parts they are not the same. We figure its either not the original motor or throttle body. They have a differnt part number but its not in stock. They were nice enough to order it and it should arrive on Monday for comparison. I think this jeep stuff is gonna be fun!
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Old 11-06-2010, 10:41 AM   #9
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Originally Posted by bvullo
The code was P0123, then they looked it up and told me it's a Throttle position sensor. Easy enough, I wnt to the local dealer, gave them the vin number and he told me there is no TPS showing for that number and none in stock. Advanced Auto looked up my year, and info and showed one but comparing the parts they are not the same. We figure its either not the original motor or throttle body. They have a differnt part number but its not in stock. They were nice enough to order it and it should arrive on Monday for comparison. I think this jeep stuff is gonna be fun!
Yes you will soon learn that it will be NEVER ENDING FUN... Your jeep will always leave you amazed at the things it will do!! But hey there great to have and with the bad you will also have all the GOOD to!! So congrats and welcome to the club!!!!
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Old 11-07-2010, 03:51 PM   #10
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Can you remove the TPS and still drive the vehicle without causing damage? I need to take the part and compare it to others according to the parts guys. I still say we're having fun.
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Old 11-07-2010, 03:59 PM   #11
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what's better than getting some father/son time, wrenching on a jeep ??
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Old 11-07-2010, 06:14 PM   #12
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Can you remove the TPS and still drive the vehicle without causing damage? I need to take the part and compare it to others according to the parts guys. I still say we're having fun.
No you can't remove the TPS unless your not gonna drive it!! If you remove it and try to drive it, it won't run right and sometimes it won't run at all!! Don't even try to run it without it because it could harm to the engine too

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