hesitation off idle 89 2.5L

90Redlimited · 03-22-2006, 01:54 AM

I'm having a really strange problem, when I'm at a stop and give it gas it will sputter like its out of gas then after a few seconds of adjusting gas/clutch it will drive just fine. It doesnt sputter if I rev the engine with the clutch in or in Neutral. Only when I try to move from a stop. Upper RPMS are just fine. Help.......

I wish the search engine was up

90Redlimited · 03-22-2006, 02:17 AM

Oh I forgot to mention, that the magic number seems to be up to 2k rpms. After that she will run up to redline without a hiccup.

**Big-n-Broke-YJ** · 03-22-2006, 09:07 AM

tried replacing the fuel filter yet?

bobbert350 · 03-22-2006, 10:23 AM

great idea get this stuff called sea foam u can get it at auto zone u may have clogged injectors or something.. i had the same prob. well the 2.5 is fuel injected.. but get that stuff if u can its 6 bucks and it will clean alot of the carbon depostits out of ur engine and u will get better milage and it will stop that hesitation

90Redlimited · 03-22-2006, 11:38 AM

Fuel filter is new as well as,wires, and plugs, I will pick up some of that sea foam today and see how it goes.

90Redlimited · 03-23-2006, 11:38 PM

picked up sea foam havent had a chance to use it yet, I noticed something though. Now that the weather is getting warmer, the problem went away. It seems it only does it when the weather is cold, regardless if the engine is up to temp or not. ????

pyro9862 · 03-24-2006, 01:00 AM

Is your choke fully disengaging?
Fuel filter?

03-22-2006, 02:17 AM	#2
90Redlimited Registered User Join Date: Jan 2005 Location: Sin City Posts: 65 Profile Gallery Classifieds My Jeeps	Oh I forgot to mention, that the magic number seems to be up to 2k rpms. After that she will run up to redline without a hiccup. __________________ 1989 Red YJ 2.5L 5speed(stocker) 2001 Silver WJ Larado 4.7 V8, Quadra Drive 1990 Red XJ Limited sold

03-22-2006, 11:38 AM	#5
90Redlimited Registered User Join Date: Jan 2005 Location: Sin City Posts: 65 Profile Gallery Classifieds My Jeeps	Fuel filter is new as well as,wires, and plugs, I will pick up some of that sea foam today and see how it goes. __________________ 1989 Red YJ 2.5L 5speed(stocker) 2001 Silver WJ Larado 4.7 V8, Quadra Drive 1990 Red XJ Limited sold

03-23-2006, 11:38 PM	#6
90Redlimited Registered User Join Date: Jan 2005 Location: Sin City Posts: 65 Profile Gallery Classifieds My Jeeps	picked up sea foam havent had a chance to use it yet, I noticed something though. Now that the weather is getting warmer, the problem went away. It seems it only does it when the weather is cold, regardless if the engine is up to temp or not. ???? __________________ 1989 Red YJ 2.5L 5speed(stocker) 2001 Silver WJ Larado 4.7 V8, Quadra Drive 1990 Red XJ Limited sold

03-22-2006, 10:23 AM	#4
bobbert350 Registered User Join Date: Mar 2006 Location: bucks county, pa Posts: 2,941 Profile Gallery Classifieds My Jeeps	great idea get this stuff called sea foam u can get it at auto zone u may have clogged injectors or something.. i had the same prob. well the 2.5 is fuel injected.. but get that stuff if u can its 6 bucks and it will clean alot of the carbon depostits out of ur engine and u will get better milage and it will stop that hesitation

03-24-2006, 01:00 AM	#7
pyro9862 Registered User Join Date: Mar 2004 Location: Long Island, NY Posts: 1,563 Profile Gallery Classifieds My Jeeps	Is your choke fully disengaging? Fuel filter?