cps

  1. T

    Should I replace my CPS?

    I have a 2003 jeep TJ 5 speed manual transmission and need to replace my clutch. After doing some research, I found a comment someone had made stating it is a good idea to change the CPS while you’re working on it. I have about 195k miles on my odometer and haven’t had any issues with the CPS...
  2. EWatauga

    Fuel Pump or CPS Issue?

    After working on upgrading some suspension components all last week I took the TJ (2005 X model with 6M 143k miles) for a test drive yesterday and everything was great. Tried to start it a couple hours later and it turns over freely but doesn't start, there is no sputtering or anything...
  3. CuzzoLJ

    05-06 stuck OPDA and maybe PCM issues?

    Hey yall! This is my first post so any advise on a better post would be great! I’ve been roaming this forum since I’ve bought the jeep and it’s been great so I decided to make an account! Anyways, I bought a 05 lj a few months back and it has been a great experience so far. Just until I ran...
  4. ndaddy

    Temperature dependent cam sensor issues

    This Jeep has been a disaster!! The just empty everyone’s pockets has epitomized my six months as a TJ owner my issue now is whenever it is cold out (<55 degrees about) or very hot, the car has to crank for about 12 seconds before it turns on. It throws a p0340 code every time (camshaft...
  5. Robio5150

    Yet Another Crank But No-Start Thread

    @Igoo65, @Jerry Bransford, whomever else...- I would PM you about this thread but I don't see that feature on this forum. YES, I've read through numerous posts here and on other forums. My situation seems to be bit different, I've tried to provide exhaustive data up front so someone can "walk...
  6. Mitch8801

    2002 Jeep Wrangler TJ with glowing red cats

    Hey Guys, So recently I was on my way home and at a stoplight had a misfire in cylinder 2, and my exhaust sounded funny and fluttery, I was like 8 minutes away so I decided to drive it home and coast down hill. Long story short, I replaced the spark plugs, still had issues. I checked my coil...
  7. J

    P1391: Loss of power and bucking

    Hey everyone, I need a little help diagnosing a problem before I bite the bullet and take it into the dealership. About a month ago my 2001 Jeep Wrangler Sport started hesitating intermittently. It would "hiccup" if you will about 3-5 times on an hour drive but wouldnt do it every time. This...
  8. penk

    2000 TJ ignition problem, now won't start

    HI everyone. My 2000 TJ, Old Yeller, has been running like a clock since I got it 3 years ago. I went away on a trip, and it sat for 2 months (in the garage). When I came back, I took it out for a drive because I missed my pal. Started up perfectly, drove it about 5 miles, and... it...
  9. Don N.

    Stalled, cranked / no start, now no crank either

    Jeep had rough idle last night, then started sputtering, revving at stop light to keep going, then it died. Would crank, but wouldn't start. Noticed after doing this a few times my gauges read "0". Left it on side of road and went back this morning. Won't crank. Removed battery and took to...
  10. Andrew B

    Persistent CPS Codes (P0340, P0344, P0016)

    Have been going rounds with my 05 w/4.0L. Started getting cam/crank correlation codes (p0340, P0344, P0016 etc) I’ve replaced both sensors, timing set, and realigned the OPDA, reset the computer and thought everything was good. This morning leaving for work, was hard starting and still throwing...
  11. Shawn’s TJ

    P0351, P0352, P0353 error codes: Engine Just dies without warning!

    Hello. I have a puzzle for all you smart Tj owners to solve. I was driving my Tj all summer long and yesterday i was driving home and it just died and would not start! I had all cluster lights and all electrical seemed normal but it just cranked and did not start. So i got her back home and left...
  12. Chris

    Jeep Wrangler TJ Camshaft Position Sensor Replacement

    Well, when I looked for threads to do this *Camshaft Position Sensor change, I found a few, but all the details in those threads didn't match my jeep's location for the sensor. Anyway, this is how it goes on my 2004 Jeep Wrangler TJ, with the 4.0 engine. Old sensor in place, right next to the...
  13. Chris

    Jeep Wrangler TJ Crankshaft Position Sensor Replacement

    There are several reason why you would need to replace your Jeep TJ Wrangler's Crankshaft Position Sensor (or CPS for short) with the most obvious one being that your 'check engine' light has illuminated and a quick check with an OBDII reader indicates you have thrown one of the following MIL...
  14. grr

    Random hard start,randomly dies & code p0340

    I have a 00 TJ w/4.0l manual. 148k miles dd. Few weeks ago it didn't want to start and threw a p0340 code. After a couple starts code cleared. Few days later it just randomly dies while accelerating. Did this again on way home and threw the p0340 code again. Again after couple of starts code...
  15. Chris

    How to change your OPDA

    One of the most common issues with the 4.0 engine in the later model Wrangler TJs is the OPDA (oil pump drive assembly). The factory OPDA is designed with two oil impregnated bronze bushings separated by an oil seal. The upper bushing is cut off from lubrication by that seal, resulting in...