ert01
NAXJA Forum User
- Location
- Edmonton, Alberta
Im 99% sure this isn't the typical TPS issue because I've tried two new ones in the last week... One cheap one and one mopar.
Jeep is a 98 4.0/AW4
Anyways, here's the story... About a month ago I washed under the hood and I'm pretty sure I got water in the TPS. A p0121 code showed so I went and bought a new cheap TPS. It worked for a week. Then p0121 showed again... Figured I'd get the mopar TPS and be done with it... But nope. It worked fine for a couple days, but now p0121 is up again.
When it does this, my jeep feels handicapped... Revs to 2k sometimes on cold idle, then when hot it doesn't want to stay idling. Transmission won't switch out of first gear, feels like power cuts out when over 2500rpm.
I am thinking maybe it wasnt actually water in the tps but rather some sort of vacuum problem?
A random but maybe related problem is that my air selector switch (to choose vents/feet/defrost) was only working intermittently earlier this month... I could choose a different setting but it would keep blowing out of the same vents. Seems to be working fine now though. But maybe this was a hint at a vacuum leak somewhere?
Jeep is a 98 4.0/AW4
Anyways, here's the story... About a month ago I washed under the hood and I'm pretty sure I got water in the TPS. A p0121 code showed so I went and bought a new cheap TPS. It worked for a week. Then p0121 showed again... Figured I'd get the mopar TPS and be done with it... But nope. It worked fine for a couple days, but now p0121 is up again.
When it does this, my jeep feels handicapped... Revs to 2k sometimes on cold idle, then when hot it doesn't want to stay idling. Transmission won't switch out of first gear, feels like power cuts out when over 2500rpm.
I am thinking maybe it wasnt actually water in the tps but rather some sort of vacuum problem?
A random but maybe related problem is that my air selector switch (to choose vents/feet/defrost) was only working intermittently earlier this month... I could choose a different setting but it would keep blowing out of the same vents. Seems to be working fine now though. But maybe this was a hint at a vacuum leak somewhere?