jeep was sput sput sputing along this morn and wouldn't go faster

Vesper0013 · 07-17-2006, 01:32 PM

i have an automatic 97 wrangler. lately, when turning on my jeep it sputters and than if i shift into reverse or drive it sputters and cuts off or it kindof sputters as i start to drive and then it works fine. this morning, different story....it did the sputtering when i started up....and then as i was driving....it wouldn't go faster....and sputtered along the street. i will take it in to the Jeep Doctor....but, kindof want a gist as to what is wrong with it so i won't get ripped off.....

WOLFSTER · 07-17-2006, 02:48 PM

Replace your O2 sensors. 97's do that after awhile. You can do it yourself and save bucks. When I had a 97 a garage quoted me 237.00 for the sensors plus labor...needless to say he didnt and will never get my business.

**Grewe02** · 07-17-2006, 02:53 PM

your cat might be clogged. mine sounded like that so i took it to the discount brakes and muffler place... little mexican dude was like, "no power?" lol so maybe thats it. good luck

de6w6it · 07-17-2006, 02:59 PM

is it displaying any engine codes?
I would make sure that you have the right fuel pressure at the injectors, which would show fuel pump and filter are ok, that there are no vacuum leaks, that the air filter, plugs, wires, rotor and cap all look good. I have had similar issues with other cars, and everytime it has been some sort of vacuum leak, either in emission control systems or integral vacuum for the motor. I know that crank position sensors can cause some funky things, and I know when my brother's TPS went bad, it acted similar to what you are describing.

Ron Green · 07-17-2006, 03:00 PM

its the O2... check my old posts!!

Ron Green · 07-17-2006, 04:18 PM

http://www.jeepforum.com/forum/f9/free-20-via-paypal-fix-issue-284432/

there ya go!

Ron

Doc_Vegas · 07-17-2006, 11:11 PM

I was about to post a similar issue. I don' t want to give in to a stealership, but I am at wits end too.

My sputters from about 1600 RPMs on up (not as noticable up top). When I am driving, I can feel an obvious drop in power then it comes back and goes out again. I had the TPS codes, and replaced the TPS. Seemed better for a while, but now the stutter is back...

I could replace the O2 sensors, but I thought I would see the engine light come on if they were spent.

Any suggestions would be GREATLY appreciated.

TJVigilante · 07-17-2006, 11:14 PM

fuel filter?

Ron Green · 07-17-2006, 11:17 PM

doc,

i didnt see a O2 code either. i even unplugged the O2 to make sure it was working the check engine sensor correctly, then i got a code. i replaced it, been great ever sense..... its stupid i know... but it doesnt throw a code...

Doc_Vegas · 07-17-2006, 11:20 PM

Quote:

Originally Posted by Ron Green

http://www.jeepforum.com/forum/showthread.php?t=284432

there ya go!

Ron

Brilliant Ron! OK, I am going for the forward O2 sensor.

FL 4.0L · 07-17-2006, 11:21 PM

Cleared my hesitation up with some new plug wires this weekend.

Ron Green · 07-17-2006, 11:22 PM

no prob doc... it will fix it...

i did the plugs too...wires.. cap... rotor.... tps....cps...... didnt fix my problems, but still nice to know they r done!

i actually returned the TPS and the CPS... gotta love the Zone

Vesper0013 · 07-18-2006, 01:52 AM

thanks so much for your help

i really wish i could fix this problem myself...hate to spend money for somebody else to do it. aarrgghhh. is it hard to do?

**Grewe02** · 07-18-2006, 07:02 AM

maybe its the o2 seal against the pipe itself... burned out the sensor

**joeyprice** · 07-18-2006, 07:31 AM

If replacing the O2 sensor doest work my money is on the cat. Had a 97 with 100k and change on it, the cat had gotten so bad that the pieces of it had broken off and clogged it up. It behaved exactly like you're describing.

07-17-2006, 02:59 PM	#4
de6w6it Registered User Join Date: Jan 2006 Location: Parsippany, NJ Posts: 623 Profile Gallery Classifieds My Jeeps	is it displaying any engine codes? I would make sure that you have the right fuel pressure at the injectors, which would show fuel pump and filter are ok, that there are no vacuum leaks, that the air filter, plugs, wires, rotor and cap all look good. I have had similar issues with other cars, and everytime it has been some sort of vacuum leak, either in emission control systems or integral vacuum for the motor. I know that crank position sensors can cause some funky things, and I know when my brother's TPS went bad, it acted similar to what you are describing. __________________ '66 Mustang/200/C4/ground up resto '99 TJ/2.5/AX5/np231 SYECV/33's Build:http://www.pirate4x4.com/forum/showthread.php?t=934136 '88 4 runner/SAS/22re/W56/duals/31's DD Build:http://www.yotatech.com/f191/de6w6it-s-1988-4runner-build-up-thread-flat-black-lemon-190657/

07-17-2006, 11:11 PM	#7
Doc_Vegas Registered User Join Date: Apr 2006 Location: La$ Vega$ Posts: 96 Profile Gallery Classifieds My Jeeps	I was about to post a similar issue. I don' t want to give in to a stealership, but I am at wits end too. My sputters from about 1600 RPMs on up (not as noticable up top). When I am driving, I can feel an obvious drop in power then it comes back and goes out again. I had the TPS codes, and replaced the TPS. Seemed better for a while, but now the stutter is back... I could replace the O2 sensors, but I thought I would see the engine light come on if they were spent. Any suggestions would be GREATLY appreciated. __________________ 1999 TJ Sahara 4.0 5-spd Dana 44 3.73 LSD

07-17-2006, 02:48 PM	#2
WOLFSTER Registered User Join Date: Apr 2006 Location: OMAHA, NE Posts: 122 Profile Gallery Classifieds My Jeeps	Replace your O2 sensors. 97's do that after awhile. You can do it yourself and save bucks. When I had a 97 a garage quoted me 237.00 for the sensors plus labor...needless to say he didnt and will never get my business.

07-17-2006, 03:00 PM	#5
Ron Green Registered User Join Date: Feb 2002 Location: Upstate New York Posts: 71 Profile Gallery Classifieds My Jeeps	its the O2... check my old posts!!

07-17-2006, 04:18 PM	#6
Ron Green Registered User Join Date: Feb 2002 Location: Upstate New York Posts: 71 Profile Gallery Classifieds My Jeeps	http://www.jeepforum.com/forum/f9/free-20-via-paypal-fix-issue-284432/ there ya go! Ron

07-17-2006, 11:14 PM	#8
TJVigilante Web Wheeler Join Date: Jun 2005 Location: Alaska Posts: 1,275 Profile Gallery Classifieds My Jeeps	fuel filter?

07-17-2006, 11:17 PM	#9
Ron Green Registered User Join Date: Feb 2002 Location: Upstate New York Posts: 71 Profile Gallery Classifieds My Jeeps	doc, i didnt see a O2 code either. i even unplugged the O2 to make sure it was working the check engine sensor correctly, then i got a code. i replaced it, been great ever sense..... its stupid i know... but it doesnt throw a code...

07-17-2006, 11:21 PM	#11
FL 4.0L Registered User Join Date: Oct 2004 Location: FL Posts: 1,301 Profile Gallery Classifieds My Jeeps	Cleared my hesitation up with some new plug wires this weekend.

07-17-2006, 11:22 PM	#12
Ron Green Registered User Join Date: Feb 2002 Location: Upstate New York Posts: 71 Profile Gallery Classifieds My Jeeps	no prob doc... it will fix it... i did the plugs too...wires.. cap... rotor.... tps....cps...... didnt fix my problems, but still nice to know they r done! i actually returned the TPS and the CPS... gotta love the Zone