iscrni
Member
Hi All,
I have been having an intermittent issue that seems to only be happening after it rains and is progressively getting worse.
to give some back story the problem started about a month ago where if it rained the night before or is raining after the truck has been sitting will have a stumbling idle where it'll stall and then catch itself to increase the idle to 1.2k rpm like a cold start and work its way down and would repeat this process randomly. Occasionally it will just stall completely, again this only seems to be after it rains and does not throw any codes when it does this.
Situation #2, about 2 weeks ago same situation where on a cold start it would continuously stumble and act like it was going to stall but catch itself and rev back up to 1.2k like it does on a cold start. but this would keep happening but this time it threw a wrench and went into a limp mode. threw a scanner on it and popped up with a U0300 code. turn the ignition off and back on to start the truck, code went away and truck ran fine.
Situation #3, Yesterday, it was raining, started the truck, it warmed up ok, had one small stumble, put it into reverse and the truck stalled. started the truck again, idled fine, let it run for a minute to see if it'd happen again which it didn't. while driving now, after about 10 minutes I noticed it seemed like it had some popping coming from the exhaust for a brief second under normal driving conditions, steady throttle at about 35mph. was only for a split second and didn't seem to do it again. continued driving for another 30 minutes where I hopped on the highway. truck was running ok until I hit about 75mph where it seemed to shutter every time I would hold the truck at that speed. like it cuts the power for a split second and returns. about 30 seconds later the truck throws a wrench code, goes into a limp mode and I coast off an exit ramp. truck is running like it's on half of its cylinders with no power. I hook up a scanner while its idling like this and got the codes P013E, P014A (O2 Sensor Delayed Response – Rich to Lean, banks 1 & 2) it also had a code for P0600 (communication error with PCM). turned the truck off, restarted the truck, and runs like nothing happened.
Truck has 135k miles, all stock besides wheels and a muffler delete. Checked the FPDM and it's ground which seemed to be ok, Had someone from O'Reilly's hook up a battery tester and said it was at 75%, terminal connections were fine. Truck has had the fuse 27 relocation by prior owner.
with the U0300 code it threw a few weeks prior I am thinking it's something to do with PCM but any insight would be greatly appreciated. These symptoms only show it's face for Rainy weather. when it's sunny and dry I can't get it to replicate the symptoms.
I have been having an intermittent issue that seems to only be happening after it rains and is progressively getting worse.
to give some back story the problem started about a month ago where if it rained the night before or is raining after the truck has been sitting will have a stumbling idle where it'll stall and then catch itself to increase the idle to 1.2k rpm like a cold start and work its way down and would repeat this process randomly. Occasionally it will just stall completely, again this only seems to be after it rains and does not throw any codes when it does this.
Situation #2, about 2 weeks ago same situation where on a cold start it would continuously stumble and act like it was going to stall but catch itself and rev back up to 1.2k like it does on a cold start. but this would keep happening but this time it threw a wrench and went into a limp mode. threw a scanner on it and popped up with a U0300 code. turn the ignition off and back on to start the truck, code went away and truck ran fine.
Situation #3, Yesterday, it was raining, started the truck, it warmed up ok, had one small stumble, put it into reverse and the truck stalled. started the truck again, idled fine, let it run for a minute to see if it'd happen again which it didn't. while driving now, after about 10 minutes I noticed it seemed like it had some popping coming from the exhaust for a brief second under normal driving conditions, steady throttle at about 35mph. was only for a split second and didn't seem to do it again. continued driving for another 30 minutes where I hopped on the highway. truck was running ok until I hit about 75mph where it seemed to shutter every time I would hold the truck at that speed. like it cuts the power for a split second and returns. about 30 seconds later the truck throws a wrench code, goes into a limp mode and I coast off an exit ramp. truck is running like it's on half of its cylinders with no power. I hook up a scanner while its idling like this and got the codes P013E, P014A (O2 Sensor Delayed Response – Rich to Lean, banks 1 & 2) it also had a code for P0600 (communication error with PCM). turned the truck off, restarted the truck, and runs like nothing happened.
Truck has 135k miles, all stock besides wheels and a muffler delete. Checked the FPDM and it's ground which seemed to be ok, Had someone from O'Reilly's hook up a battery tester and said it was at 75%, terminal connections were fine. Truck has had the fuse 27 relocation by prior owner.
with the U0300 code it threw a few weeks prior I am thinking it's something to do with PCM but any insight would be greatly appreciated. These symptoms only show it's face for Rainy weather. when it's sunny and dry I can't get it to replicate the symptoms.
