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Unread 03-26-2015, 07:21 AM   #1
plsmocke
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1995 YJ Wrangler 
 
Join Date: Mar 2015
Location: milwaukee, wi
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'95 YJ Dies while idling and braking

Hello all, I recently got my first Jeep about 3 weeks ago. I traded my motorcycle for it knowing that it would probably need some bit of TLC. It runs perfect except every now and then when I'm making a turn or braking it will die; it doesn't have a slow decline in RPM's, it just dies. The same thing happens while leaving the Jeep sit and idle by itself. It will be fine for a couple minutes but eventually will die. It has a good sounding idle the entire time but just stops immediately. The things I have done so far after reading through a plethora of forums here:

-Replaced IAC
-Replaced MAP sensor
-Replaced TPS sensor
-Cleaned the Throttle Body inside and out
-Replaced the Fuel Pressure Regulator

Does anyone have any thoughts on what I can try next besides taking it to a dealership? Any input would be appreciated.

Thanks,
Pat

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Unread 03-26-2015, 07:36 AM   #2
plsmocke
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Oh I forgot to mention some other things I replaced:

-Spark plugs
-Spark plug wires
-Distributor Cap
-Rotor
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Unread 03-26-2015, 07:52 AM   #3
TSEJEEPERS
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Location: Morton IL
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Check the vacume line that goes inbetween the brake booster and manifold.
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93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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Unread 03-26-2015, 10:03 AM   #4
mike134
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1989 YJ Wrangler 
 
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when it is sitting there idling and dies, I assume it is in neutral?

I'd look at an intermittent CPS failure next. It is usually the culprit when the engine suddenly dies.
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Unread 03-26-2015, 10:19 AM   #5
ghetdjc320
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1988 YJ Wrangler 
 
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Does your speedometer work alright? A speed sensor failure can cause your engine to stall and die when you slow down. The speed sensor is located in the tailhousing of your transfer case. Make sure the connector is good and that the hold-down clamp is secure. Just one of many possibilities.
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Unread 03-26-2015, 10:25 AM   #6
Que89YJ
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I bet you have power steering. Post back if you do.
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Unread 03-26-2015, 11:29 AM   #7
plsmocke
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Thank you for the quick responses guys! I'll check that vacuum line tonight hopefully. Mike, it'll die when it's in nuetral or I have the clutch engaged and in gear. Yes, the speedometer works just fine and yes I have power steering. Once again, thanks guys.
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Unread 03-26-2015, 11:46 AM   #8
Que89YJ
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Power steering. You are having an issue with the load switch on your power steering. This post will show you where to look:
http://www.jeepforum.com/forum/f12/h...-hose-1214933/
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Unread 03-26-2015, 12:41 PM   #9
plsmocke
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Why do you think the power steering is what is causing my issue? The post you reference doesn't explain what the symptoms are for a failing load switch.

Thanks
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Unread 03-26-2015, 12:56 PM   #10
Que89YJ
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It doesn't idle up under load. Turn your steering wheel. Does it idle up? Look at the switch.
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Unread 03-26-2015, 01:06 PM   #11
mike134
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Its the sudden engine cutting off at idle in neutral that would make me think it might not be power steering or a lack of power at idle. Although, he didn't say whether he was turning the wheel when it happened. I guess I assumed he was letting it sit there and doing nothing.

Definitely worth checking if it bogs when turning the wheel though.
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Unread 03-26-2015, 01:14 PM   #12
plsmocke
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You are right Mike, it happens even when I am standing outside of it. I've spent at least an hour walking around it while running, listening for any odd noises. But yes, it will happen even if the system is not under load, like turning the steering wheel. One thing I just read in my manual is that the e-brake light on the dash might effect how the computer handles the RPM's. As of now, I have the e-brake removed and the switch wire closed to ground (telling the computer the e-brake is activated). I was going to try that tonight as well. But I would assume the e-brake being activated would not factor into the equation when the jeep is just sitting there and not moving.
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Unread 04-01-2015, 07:07 PM   #13
Steve707
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Quote:
Originally Posted by ghetdjc320 View Post
Does your speedometer work alright? A speed sensor failure can cause your engine to stall and die when you slow down. The speed sensor is located in the tailhousing of your transfer case. Make sure the connector is good and that the hold-down clamp is secure. Just one of many possibilities.
Hate to bump this but thank you. This solved my stalling issue.
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Unread 04-01-2015, 07:16 PM   #14
Que89YJ
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It is usually stalls when coming to a stop when the speedo is bad. Thank you for posting it helped. Please give his post a thumbs up.
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Unread 04-01-2015, 07:23 PM   #15
Steve707
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I did, thanks Que. I had the clip in the wrong quadrant.
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die , iac , idle , tps , YJ

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