ak9210

Hi All.
I could really use some advice. I just changed the timing belt on a 05 rl and it ran great for 30 minutes then p0300(misfire), p0335(cam sensor?), p0339. I read somewhere that this is a common symptom of timing being off by a tooth. Is there an easy way of correcting timing without taring it all back down? Thanks.

sOLLEx

The only way to correct it is to tear it back down minus the mount that goes through the water pump and take note of where your crank and cam marks line up when you put cylinder #1 at top dead center. Make sure to align the pointer on the lower cover with the white notch on the crank pulley first and see where your off from there. Remove the timing belt tensioner and let the belt hang then adjust your cams where the front cam mark lines up with the #1 cylinder and the rear cam lines up with it's notch on the cam plate. Compress your tensioner in a vice and put a pin through the hole and install it before you try and line the belt back up. Start with the crank pulley first, then the front cam and all of your slack should be between the rear cam and the tensioner. Once your sure it is aligned right, pull the pin on the tensioner and you should be good. Rotate the motor by hand and make sure your marks line back up before you re-install the covers.

ak9210

Thanks for the input. I was afraid of that.

ak9210

Still need some advice. I also replaced the spark plugs (oem ngk) along with the timing belt. Here are all of the codes that popped up: P0300, P0301, P0305, P0339, P0335, sh-all wheel drive: 77, VSA: 83. Could all of these codes be from a timing issue? Thanks.

sOLLEx

Yes they are all related...They are the vehicles other systems that disable when you have multiple misfires...Did you check back over your repair to see if in fact the motor is out of time? Did you leave the crankshaft position sensor at the bottom of the crank unplugged? If all of these magically appeared after you replaced the belt, then yes something is off. One of those codes is for no signal of the CKP so that would typically mean it is not plugged up since you had to move it out your way to take the belt off. I have given you plenty to go on.

ak9210

Timing belt change/ CEL update: After changing my timing belt and spark plugs, I got multiple codes (refer to previous post). I rechecked the timing and spark plugs and every was fine except the car still ran like crap. Found a loose vaccum line by #2 spark plug that fixed all of the codes. RL runs like new again .

sOLLEx

Glad to hear you got it figured out, however a loose vacuum hose will not cause CKP codes or even multiple misfires.

ECRD

Yes a vacuum hose will not cause misfire conditions you have something else going on....

ak9210

I agree, a loose vacuum line should not cause all of those ckp codes, however, it does and it did. There is a vacuum line by #2 spark plug that terminates on the support bar that goes across the back of engine bay. Not sure what the v-line is for, but it makes the engine go nuts after driving around a bit.

sOLLEx

That hose that terminates at the strut bar is not a vacuum hose. If you will remove it, you will notice no vacuum is present with the engine running. It is just a breather hose for the transfer case assembly. Not here to argue with you but merely driving around with that hose disconnected is not going to set misfires or crankshaft position codes.