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Old 08-19-2012, 05:28 PM   #1
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97 TJ - Help

Can somebody suggest what's going on with my TJ? frustrated.

While running the engine dies on me all of a sudden, sometime in the middle of the road while waiting on lights to go green..... Sometimes it starts immediately.. took it to a near by garage, changed the ignition coil, couple of other parts even the crank sensor switch...After couple of days the engine ideals but sometimes it goes low and dies....
Any suggestion of what this might be? .... help

The mechanic said the engine is good... Does it have to do with the "Ground", electric trouble are hard to decipher.

Thanks in advance...

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Old 08-19-2012, 06:41 PM   #2
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Quote:
Originally Posted by GeoKing View Post
Can somebody suggest what's going on with my TJ? frustrated.

While running the engine dies on me all of a sudden, sometime in the middle of the road while waiting on lights to go green..... Sometimes it starts immediately.. took it to a near by garage, changed the ignition coil, couple of other parts even the crank sensor switch...After couple of days the engine ideals but sometimes it goes low and dies....
Any suggestion of what this might be? .... help

The mechanic said the engine is good... Does it have to do with the "Ground", electric trouble are hard to decipher.

Thanks in advance...
Also, sometimes the engine idles with various RPM before it dies...

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Old 08-19-2012, 07:18 PM   #3
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sounds like fuel issues. try having the fuel system cleaned. jiffy lube does the gumout for 50 if i remember. if it does it after that could be a fuel pump going bad. thats what i think seeing how it idles funny before it dies.
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Old 08-20-2012, 11:08 AM   #4
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might be fuel pump.

I've got the same year wrangler and about a week and a half ago i had to change the fuel pump. The symptoms started a few months ago. It would start to hesitate and loose power as i was going down the highway. Then a couple of weeks ago, it started to loose power and stall out. It would hesitate to start and when it did, it would start to back fire and would not want to go very fast(10-15 mph). Also, once it would get back to semi normal, it would not go over 3000 rpm's. A buddy of mine, ex mechanic, checked the fuel pressure and sure enough, the needle would shake all wacky and the pressure would drop once it hit 3000 rpms . Got the complete pump at autozone for about @ $220. That's for the complete19 gallon tank. The complete15 gallon tank pump is more.
Hope this helps you out.
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Old 08-25-2012, 11:05 AM   #5
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Thanks for the feed back

Thanks for the info -
Well, I checked the fuel pressure and it was good, but when investigated further, I thought I need to check the "(IAC) Idle air Control Valve/Motor?", so replaced it ($48.00 in pepboys) and it seems to idle well this morning.... Maybe will drive it for the rest of the day ..... Hope it works..... Thanks a lot folks for the feed-back.
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Old 08-25-2012, 11:51 AM   #6
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Does Your Jeep throw codes, Or does it loose electrical power to the instrument panel when it stalls on the highway or at a stop?
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Old 08-25-2012, 12:13 PM   #7
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Does Your Jeep throw codes, Or does it loose electrical power to the instrument panel when it stalls on the highway or at a stop?
I didn't check the code.
Initially it was loosing electric power to the coil only, (no spark was generated) the instrument panel was ok, or i didn't notice it.... It stalled on the signal stops... I didn't dare to take it to the highway with this issue... But now after changing the IAC it works good...
Hope i was clear.....
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Old 08-25-2012, 12:26 PM   #8
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Next time know that the IAC can simply be cleaned with something like a throttle body or carburetor cleaner and restored back to normal operation.
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Old 08-25-2012, 01:09 PM   #9
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OK will do. I don't have the mechanics "Thumb"

Does anyone know any Jeep mechanic around NY -11572 area? A specialist!
Most mechanics I went to were not able to diagnose even close to the issue....
A suggestion would be much appreciated - Thanks
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Old 08-25-2012, 01:28 PM   #10
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Quote:
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OK will do. I don't have the mechanics "Thumb"

Does anyone know any Jeep mechanic around NY -11572 area? A specialist!
Most mechanics I went to were not able to diagnose even close to the issue....
A suggestion would be much appreciated - Thanks
do a site search for 'cleaning throttle body, here.. it's pretty simple to do urself. about 2 hrs if u don't know what u're doing.. good luck...
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Old 08-25-2012, 01:47 PM   #11
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do a site search for 'cleaning throttle body, here.. it's pretty simple to do urself. about 2 hrs if u don't know what u're doing.. good luck...
I'd have to say more like 30-45 minutes if you don't know what you're doing. 10 minutes if you know what you're doing.

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