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Jeep Wrangler, Scheduled Maintenance, Steering, Suspension, Tires, SUV
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#1792 of 1888 1998 Wrangler miss firing
Nov 01, 2010 (11:44 am)
Hello all my stepson has a 98 wrangler that gave him a throttle positioning code, the Jeep was hesitating and skipping we changed the sensor and it still skipped, code did not clear. We also changed the plugs cap rotor and wires ran the same. My son works at a service station and his boss read on the repair sites that the clockspring circuit is also part of the T.P. circuit so they disconnected the clockspring wiring harness which is the horn and airbag too now it runs fine but we have an airbag light. Has anyone heard of this a new clockspring is $300.00 bucks any suggestions.
#1793 of 1888 Re: 1998 Wrangler miss firing [iroc65]
Nov 02, 2010 (7:07 am)
Hello all my stepson has a 98 wrangler that gave him a throttle positioning code, the Jeep was hesitating and skipping we changed the sensor and it still skipped, code did not clear............... they disconnected the clockspring.........
Knowing the code he got would help.
The clockspring allows the horn, airbags, and cruise controls if he has them, to stay connected when the wheel is turned.
AFAIK there is no connection between any of those and the TPS, other than that the TPS signal is part of the information used by the PCM for regulation of the cruise control.
However, the TPS circuit is not part of the clockspring circuit, and whether it's connected or not should have no effect on the TPS or its behavior.
You may have a bad new TPS (unlikely but possible), it may have been installed incorrectly (more likely), or it may have never been needed at all (much more likely).
Without knowing the code it's impossible to tell, but the symptoms could also be indicative of an issue with the fuel system or the MAP sensor, or it could be as simple as a dirty throttle body that needs cleaning.
#1794 of 1888 1998 Jeep Wrangler
Nov 10, 2010 (12:17 pm)
My wrangler has been acting strange, sometimes stalls when I stopped at a light, sometimes doesn't want to move when I accelerate. I changed the TPS and it is still the same any ideas?
#1795 of 1888 Re: 1998 Jeep Wrangler [pebbie]
Nov 11, 2010 (6:41 am)
Have you checked for codes yet?
#1796 of 1888 Re: 1998 Jeep Wrangler [mac24]
Nov 11, 2010 (9:57 am)
No, I didn't check the codes, I din't think codes show unless the check engine light was on and it's not. Do they show anyway?
Nov 11, 2010 (4:09 pm)
I have a 97 tj when i bought it the radiator blew while driving it home i bought a used one at a salvage yard. it had a leak and they have an "no refunds just exchanges" policy... what are some parts that would be good for me to purchase with my credit line??
Also my oil pressure gauge was reading low so my mechanics put in a quart of lucas oil and it is doing better... but when i idle it goes to 0 but goes back up when i start moving... any ideas??
#1798 of 1888 Re: 97 TJ [kiser91]
Nov 12, 2010 (6:23 am)
The OEM radiator with the metal/plastic seam is NOT a good solution. Your best bet to solve the problem is to get a good all metal radiator from some place like Radiator Barn. I put one in back in 2003 and have not leaked a DROP of coolant since then.
As for your oil. Your oil sending unit may be on the fritz or you just need a good oil change. Sounds like things may be a bit gunked up. So run with new oil and perhaps add a cleaning agent if there are any for oil, then change again in 3000 miles.
#1799 of 1888 Re: 1998 Jeep Wrangler [pebbie]
Nov 12, 2010 (6:28 am)
It depends on the type of code and the cause. If the light comes on because a code is set, but it's the type of problem that allowes the light to be extinguished after a certain number of satisfactory starts, then the code itself should still be retained by the PCM as a 'stored code'.
Nov 12, 2010 (9:06 am)
i solved the radiator problem and ill see what those things will do.
What are some ideas on parts to get from a junkyard?
#1801 of 1888 Re: 97 TJ [kiser91]
Nov 15, 2010 (11:51 am)
Good ones, not broken ones.
For major safety or driveline stuff, I tend to go new. But for accessories like switch bezels, body parts (windshield frame, cowl, fender), junkyards are great. I have a good rapport with the local yard that tends to have a LOT of TJ stuff so they let me wander the yard and see what I need.