TJ with a sudden rev for no reason - Pirate4x4.Com : 4x4 and Off-Road Forum

dman · 02-24-2003, 01:11 PM

I have a 1999 Wrangler with a 4.0L. While wheeling in the snow at elevation (6000'+-) I spent some quality time in the snow crawling to pack it down to get a good tug on a buddies Jeep to unstuck him. The problem is that when going form neutral to drive or reverse while in 4Low the engine reved to about 4500 rpm without my touching the gas pedal??? It would then rev down after a split second and act normal. Now this is intermittent, didn't happen everytime and the Jeep was fully warmed up and I hadn't even touched the gas, just dropped it into gear, I was standing on my brakes as always while switching gears.

I just recently installed a RE 3.5" super flex kit and went with the transfer case drop for now. The reason I mention this is because if I dropped the transfer case an 1" then the angle of my engine must have chaged slightly possibly causing a cable or something to bind or stretch or.....??????

Has anyone ever had this problem?

Acer93221 · 02-24-2003, 02:48 PM

well i havent had that problem but i might key word MIGHT be able to tell u whats wrong but no garentees but theer could be 2 things like what u saud might be streching the cable! or it mght be somehting reguler it seems my friends car did that but he did somehting ti it i duno what and it miad it quite but it doasnt sound major!

dman · 02-24-2003, 02:50 PM

That's what I was thinking. I did forget to add that mine is an auto tranny.

02-24-2003, 01:11 PM	#1 (permalink)
dman Registered User Join Date: Jan 2001 Member # 2904 Location: Sacramento, CA Posts: 55	TJ with a sudden rev for no reason I have a 1999 Wrangler with a 4.0L. While wheeling in the snow at elevation (6000'+-) I spent some quality time in the snow crawling to pack it down to get a good tug on a buddies Jeep to unstuck him. The problem is that when going form neutral to drive or reverse while in 4Low the engine reved to about 4500 rpm without my touching the gas pedal??? It would then rev down after a split second and act normal. Now this is intermittent, didn't happen everytime and the Jeep was fully warmed up and I hadn't even touched the gas, just dropped it into gear, I was standing on my brakes as always while switching gears. I just recently installed a RE 3.5" super flex kit and went with the transfer case drop for now. The reason I mention this is because if I dropped the transfer case an 1" then the angle of my engine must have chaged slightly possibly causing a cable or something to bind or stretch or.....?????? Has anyone ever had this problem?

02-24-2003, 02:48 PM	#2 (permalink)
Acer93221 Registered User Join Date: Oct 2002 Member # 14334 Location: Exeter,Ca Posts: 89	the problem well i havent had that problem but i might key word MIGHT be able to tell u whats wrong but no garentees but theer could be 2 things like what u saud might be streching the cable! or it mght be somehting reguler it seems my friends car did that but he did somehting ti it i duno what and it miad it quite but it doasnt sound major! __________________ They all say "I'm Sorry" but do they actually mean it?

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02-24-2003, 02:50 PM	#3 (permalink)
dman Registered User Join Date: Jan 2001 Member # 2904 Location: Sacramento, CA Posts: 55	That's what I was thinking. I did forget to add that mine is an auto tranny.