Need HELP cant figure this out - JeepForum.com

 
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post #1 of 2 Old 06-04-2003, 08:05 PM Thread Starter
sup2nrmkiii
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Need HELP cant figure this out

I have a 97 GC limited 5.2 v8 with 80,580

At any speed the GC would start studdering like it wanted to die. I hit the gas and nothing then kick hard a couple sec later, this only happened like 3 times . I changed the spark plugs & wires last week . It ran great untel lastnight same thing started happening again, but with major loss of power then it would stall .
And The check engine light came on with codes 12 & 21.

Any suggestions??


Last edited by sup2nrmkiii; 06-09-2003 at 06:45 PM.
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post #2 of 2 Old 06-05-2003, 12:23 AM
moabster
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Sounds like it could be the Oxygen Sensor. Check out the codes here

2000 Jeep Grand Cherokee V8 Stock
93 YJ I6 hard top (really belongs to SPEED)
RE 4.5" Extreme Duty Lift, Advanced Adapters SYE, Tom Woods CV Drive Shaft, EA589 10" rims with 33" x 12.5" MT/Rs
Bullet Proof Front and Rear Bumpers and Tow bar
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