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-   -   general jeep questions (http://www.wranglerforum.com/f282/general-jeep-questions-31288.html)

alytle 05-29-2009 01:05 PM

general jeep questions
 
i got a question, my jeep which is a 1998 wrangler Sahara sometimes has trouble accelerating. in the winter or when my jeep has been out in the rain i will be driving down the street and my foot is on the gas and the jeep will slow down. then it will lurch forward, and slow down again. i have to tap the gas several times for it to finally steadily increase speed. i don't know what it is and i was hoping for some suggestions. i think it could be a gas filter but im not sure.

G-Pur 05-29-2009 01:26 PM

I just encountered a similar problem with the wife's Kia. Dealer said that the air intake hose was disconnected from wherever it mixes with the gas. The engine wasn't getting the proper mixture of gas and air to fire correctly so it made first gear a nightmare.

DallanG 05-29-2009 02:38 PM

Did your check engine light come on at all? If it did, then there should be a code stored in the computer that hould help determine the problem.

Sb5551 05-29-2009 02:43 PM

There are several things that could cause this. I have heard of the TPS causing this and when I switched mine it didn't do it again, but my symptoms weren't as bad as you describe. Any codes?

leesmythe 05-29-2009 03:19 PM

very well could be injectors..

i have a 98 as well with 140,000 miles, and im startin tohave injector issues...

im surprised mine have lasted this long though.

buy some seafoam and drop it in your gas tank.

InfernoGirl 05-29-2009 08:12 PM

Tps??? How does that affect driving? Assuming you mean Tire Pressure sensors.

I would also look at the fuel filter.

DallanG 05-29-2009 08:36 PM

Quote:

Originally Posted by InfernoGirl (Post 379890)
Tps??? How does that affect driving? Assuming you mean Tire Pressure sensors.

I would also look at the fuel filter.

TPS means throttle position sensor.

1997redTJ 05-30-2009 01:28 AM

yeah and that would effect many things

InfernoGirl 05-30-2009 08:04 AM

Ok, thanks for clearing that up for me... :doh: Too many acronyms, not enough brain! :D

meyers 05-30-2009 08:10 AM

Sounds like the TPS, I would take it to a parts place that does free scans and see what it says.

1997redTJ 06-01-2009 04:33 PM

if you have a multimeter you could hot it up to the source and ref wires and then turn the key to the on position then move the thottle by hand and see if the voltage moves accordingly

blackjeep51 06-01-2009 07:39 PM

Have you changed your O2 sensor in the last 50,000 mi? I had a similar problem (97 4.0).
The new sensor felt like a new Jeep.

alytle 06-02-2009 11:25 AM

i was really thinking it was the 02 censor ill probably get it looked at do you knwo how much a check would cost?

1999tj 06-02-2009 11:28 AM

i have the same exact thing going on right now does it only do it at first then once it does it once you are good for the rest of the trip. if so that is the same thing i have and i have asked many mechanics and not one of them has been to figure it out

603TJ 06-02-2009 08:03 PM

I have a 98 with a similar problem.... Does anyone know if this is a easy fix? and by easy I mean, not cost a fortune and I could do it myself?

dooder 06-02-2009 08:07 PM

Quote:

Originally Posted by InfernoGirl (Post 379890)
Tps??? Assuming you mean Tire Pressure sensors.
.

your thinking of TPMS. tire pressure monitor system

jjseel 06-02-2009 09:12 PM

Quote:

Originally Posted by alytle (Post 381822)
i was really thinking it was the 02 censor ill probably get it looked at do you knwo how much a check would cost?

Places like Auto Zone will read your codes for free, so they can sell you the parts.


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