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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Stalling on freeway.

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Unread 04-02-2013, 11:50 AM   #16
Ruby3
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1998 ZJ 
 
Join Date: Oct 2012
Location: , Indiana
Posts: 9
Sounds good. Ill have to add that to the build sheet

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Unread 04-09-2013, 02:28 AM   #17
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
Plenum replacement gave me power but I still have that stall on the freeway. I'm stumped!
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Unread 04-09-2013, 09:50 AM   #18
ilive4cars0122
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1998 ZJ 
 
Join Date: Jun 2010
Location: , NY
Posts: 564
Quote:
Originally Posted by sergio
Plenum replacement gave me power but I still have that stall on the freeway. I'm stumped!
Check the ignition coil yet?
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Unread 04-09-2013, 02:16 PM   #19
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
Quote:
Originally Posted by ilive4cars0122

Check the ignition coil yet?
No not yet. I was last night but isn't the ignition coil work to only turn on the jeep?
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Unread 04-09-2013, 06:48 PM   #20
ilive4cars0122
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1998 ZJ 
 
Join Date: Jun 2010
Location: , NY
Posts: 564
Quote:
Originally Posted by sergio

No not yet. I was last night but isn't the ignition coil work to only turn on the jeep?
The ignition coil gives the spark to a wire that runs to your distributor. Then distributor then supplies that spark to each individual spark plug wire making it to the spark plugs. I think u can understand what happens next.
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Unread 04-30-2013, 11:25 PM   #21
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
So quick update. I changed the ignition coil but it made no difference at all. It still hesitates on freeway like its cutting gas. I have no idea what else to change. My last bet would be a clogged cat or fuel pump. Ehhh.
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Unread 05-01-2013, 03:16 AM   #22
Rich93ZJ
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1993 ZJ 
 
Join Date: Sep 2012
Location: Richland, Ga
Posts: 455
Have you tried swapping the fuel pump relay yet. May have a flaky relay. If that doesn't do it, I would check the fuel pressure as stated in a previous post. G/L. Keep us informed.
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Unread 05-03-2013, 12:28 AM   #23
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
Quote:
Originally Posted by Rich93ZJ View Post
Have you tried swapping the fuel pump relay yet. May have a flaky relay. If that doesn't do it, I would check the fuel pressure as stated in a previous post. G/L. Keep us informed.
Would you happen to know where i would be able to get a new pump relay for a good price?
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Unread 05-03-2013, 04:16 AM   #24
ZeeJay1997
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1997 ZJ 
 
Join Date: Dec 2008
Location: Sweet Home, Alabama
Posts: 6,582
Swap it out with another relay from the PDC
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Unread 05-04-2013, 03:43 AM   #25
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
I changed the relay. Doesn't do it as much, but its still there. Seems to go away every time I switch something out but comes back every time. I haven't done the fuel pressure check yet, but im going to try the soap and water trick. As of now im not driving it until i figure what it is. Sucks because i have my lift ready to be put in.
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Unread 05-05-2013, 08:12 PM   #26
papitt
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1995 ZJ 
 
Join Date: Dec 2008
Location: Stephenville Texas 76401, Texas
Posts: 709
I bought a fuel pressure gauge set up from Harber Freight not long ago it was only about 18.00 of maybe 25.00 But cheap.
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Unread 06-23-2013, 05:51 PM   #27
sergio
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1995 ZJ 
 
Join Date: Apr 2012
Posts: 175
So finally came to checking the fuel pressure and it's reads fine. Anymore possible ideas why? I've changed everything. Would a crankshaft do the fix?
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