• Register
Ask OBDII Question

Tech Challenge

Take the Engine-Codes.com Tech Challenge and test your car repair knowledge

Start Challenge
Engine Light ON?

The Engine-Codes.com ELM327 WiFi Car Diagnostic connects to your Android phone, iPhone, iPad, or Windows computer from your vehicle.
Get Yours Now!

21,481 questions

10,972 answers

632 comments

9,290 users

Top Users

Reynaldo (4207 Points)
G37driver (3217 Points)
OBDIITech (2422 Points)
milonajo1 (737 Points)
OBDtech2 (165 Points)
corvette-78 (127 Points)
knowledge 1488 (124 Points)
Samat Bekov (117 Points)
ptl (113 Points)
sabtele (112 Points)

P0138 JEEP -

99 jeep wrangler 4.0 auto.96000 miles. po138 code. replaced sensor,cleared code, have no pending codes. still stumbles. its worse when cold, have to put in netural rev then gos away. ounce it warms up it gets a little better, but gas mileage still sucks.put in new plugs,muffler, no vacume leaks, pcv is good. the C and the O symbol on the scan tool flashes on and off. any ideas?
asked May 30, 2011 by anonymous

Please log in or register to answer this question.

Related questions

1 answer
1 answer
242 views asked Mar 18, 2013 by anonymous
Home - About Engine-Codes - Privacy Policy - Terms and Conditions - Copyright 2010- Engine-Codes.com

Engine-Codes.com - PerfectMats.com - TheAutoMedia.com
HelpForCars.net - Infinitihelp.com - Nissanhelp.com - CarZoneAutoRepair.com

...