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Alloy usa heavy duty ball joint kitsNEW!! HMF 50"-52" light bar mounting brackets!! ZONE 4.25" combo lift for TJ available at Rockridge4w

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Unread 11-22-2013, 07:22 PM   #1
jrich58
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2008 KK Liberty 
 
Join Date: May 2013
Location: Plattsburgh, NY
Posts: 79
Hey all. My 2008 kk with 68000 miles has been running pretty bad lately. It has a chugging sound at acceleration, just from 600-1500rpm...jeep feels like it just doesn't have the power overall though. Once the jeep starts moving more than a couple mph, it sounds normal. I have changed the plugs...used NGK stock coppers gapped to owner manual specs, new air filter, cleaned a little of the throttle body, didn't move the butterfly though. I have also had a fresh oil change. No cel and idles rock solid at 600 rpm. Also had it checked for an exhaust leak, said it was fine. Is there anything else I can look at before having satan diagnose for a crazy ridiculous hourly rate.


Last edited by jrich58; 11-22-2013 at 09:25 PM..
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Unread 11-22-2013, 09:30 PM   #2
Katmandu
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2013 JK Wrangler 
 
Join Date: Aug 2005
Location: Troy, Ohio
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Throttle Positioning Sensor.
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Unread 11-22-2013, 09:39 PM   #3
jrich58
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According to rockauto.com, the kk doesn't have a tps. Can anyone confirm this?
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Unread 11-24-2013, 09:45 AM   #4
jrich58
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anyone know if our KK's have this sensor? What is the sensor located right at the throttle body where the intake tube connects?
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Unread 11-24-2013, 01:36 PM   #5
lfhoward
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I think it is part of the throttle body assembly and can't be changed out by itself. My Scangauge II reads the TPS so the KK does actually have one.
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Unread 11-24-2013, 04:16 PM   #6
jrich58
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Location: Plattsburgh, NY
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is there a way for me to test it, to make sure its faulty before buying a new new TB assy? I heard its a potentiometer style sensor, anyone know what the ohms resistance should be?
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Unread 11-24-2013, 11:35 PM   #7
Gageraid
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Not sure of how much of a test it would be, but if you know someone with a scangauge and borrow it, you'd be able to see what the tps was showing.
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Unread 12-09-2013, 12:14 PM   #8
jrich58
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Location: Plattsburgh, NY
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Thanks guys. Would someone be able to help me out? Im looking for the resistance value (ohms) of the tps in our KK's. I'd like to try and test it before spending almost $200 on a new throttle body assembly. Anyone willing to help me out and check theirs with a meter and provide the results?
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Unread 12-09-2013, 12:58 PM   #9
Gageraid
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Quote:
Originally Posted by jrich58 View Post
Thanks guys. Would someone be able to help me out? Im looking for the resistance value (ohms) of the tps in our KK's. I'd like to try and test it before spending almost $200 on a new throttle body assembly. Anyone willing to help me out and check theirs with a meter and provide the results?
The best I can help you with is providing tps reading from my ScanGauge.
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Unread 12-09-2013, 01:10 PM   #10
jrich58
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okay, thanks. What kind of numbers would that produce? Ohms?

I always appreciate your help Gage!!
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Unread 12-09-2013, 06:17 PM   #11
jrich58
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hey all, i have a bit of an update....today I noticed that the "chugging" sound doesnt happen when cold and not up to temperature yet....does anyone know if the tps is possibly disabled during warm up? Is there anything else that it could be seeing as it only happens when warmed up?
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Unread 12-09-2013, 08:28 PM   #12
BillyP
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You should be getting a check engine light and codes if the TPS is defective - DTC P0123 - Throttle Position Sensor 1 Circuit High or P0222 - Throttle Position Sensor 2 Circuit Low are active or stored.
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Unread 12-10-2013, 08:08 AM   #13
jrich58
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hhmmm, def no check engine lights....I re-installed my hypertech tuning last night and had no codes. Weird thing is, when It is really dark out, when shifting from first to second, I can see my headlights dim for a split second. could this all be alternator related? I have the auto tranny.....?
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Unread 12-10-2013, 03:55 PM   #14
Gageraid
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Quote:
Originally Posted by jrich58 View Post
hhmmm, def no check engine lights....I re-installed my hypertech tuning last night and had no codes. Weird thing is, when It is really dark out, when shifting from first to second, I can see my headlights dim for a split second. could this all be alternator related? I have the auto tranny.....?
I think everyone's KK has some sort of weird headlight issues. Mine will dim slightly if I put the windows up or down. No big deal.
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Unread 12-10-2013, 03:56 PM   #15
Gageraid
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Quote:
Originally Posted by jrich58 View Post
okay, thanks. What kind of numbers would that produce? Ohms?

I always appreciate your help Gage!!
I forgot to check, but I will post tonight around midnight.
It's just tell you a number, not in ohms.
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