Hello all... I have had all sorts of intersting issues. I swapped the front end that was originaly 2wd to a 242 4WD unit... That thread is here...
I have always had what I thought as electrcal ignition issues the whole time i've had it. So....When I bought the car about 20,000 miles ago it has always had a skip to the engine (nothing too major, i thought.) I could start it up and drive away and after a couple of block it would stutter. I'd let of the throttle and she would take a breath and continue on with no real issues other than an occasional stutter. Only code i get from the computer is 12 "Loss of power to PCM in the last 50 turns of the ignition". Checked those connections, which I have found to be the subject of many a post, cleaned them and made sure all was seated correctly. Still get the code so I have always thought the PCM needs replacing to. But I was always able to drive along with only the occasional shudder from the engine.
My fiance was on the way home one evening a few months ago.... when she was coming around a corner a bit of storm debris had fallen on the road and it probably got up and hit the lower o2 sensor...... being our only vehicle and daily driver I tried to get it fixed as quick as i could but.... one day the gasses i guess built up a bit to much when she stuttered as usual and BLEW UP the muffler!
Had fun replacing all of that.....
Now the stuttering has become more apparant and now it started stalling more often. Then, a few weeks ago, I was driving along and the stutter turned into something of pure evil, (hiccuping, coughing, kicking up a real fuss!), and then stall! wouldn't start again and had to "cool off" before restart. (Usually about five or ten minutes or so.) I checked the computer codes and it came back with an ignition coil malfunction. So.....replace.
Now everything starts going wrong.
I replace the coil and the stuttering becomes more pronounced and all the time. so after getting checking the codes again I get new ones. STill getting the same "12", but now we get a "43", misfire...., huh?, I went and replace everything in the dizzy.... the "pickup" the rotor and the cap have been replaced and...... It gets worse!!
I checked all the posts I could and many pointed me to next in line from the PCM, the crank sensor.
Replaced that yesterday..........
Bad idea... Now the jeep runs like crap!!!!! It spits and backfires through the intake.... I was barely able to limp home....and it only stalled about 8 times! Ican only think now that either the timing chain needs replaced and the computer needs replaced. I got the chain set today ad the PCM will be here in the middle of the week.
SO... I begin the chain job.
I get the timing on TDC with compression blowing the finger out #1 to be sure of the stroke. Then I proceed to remove the timing chain cover and discover this......
A picture is worth at thousand words so take a gander and tell me if you think this looks right....this really blows my mind!!!......
I haven't touched a thing other than to remove the timing cover. You can see the cam mark all the way at the back of the case... and the crank mark seems to be in the correct position. But am I correct in thinking that the cam is 180 off....??? HAs it been off the entire time I've had the truck??? How odd is this!!!???
Please respond ASAP as I am going back over to the house to work on it tomorrow.
Thanks all for the help!!!