Limp Mode on 1st start of the day
08-09-2007, 09:52 AM
#1
TECH Fanatic
Thread Starter
Join Date: Jan 2005
Location: Lafayette, Louisiana
Posts: 1,489
Likes: 0
Received 0 Likes
on
0 Posts
Limp Mode on 1st start of the day
When I crank the truck for the 1st time in the morning it runs fine for a couple of mins then when I get around the corner it goes into limp mode and the SES light flashes at me. It will do that for a few mins then go right back to running fine and the flashing light goes away. Then it runs fine the rest of the day.
This did it once about a week ago and I thought it was just a glitch but now its done it the last 2 days in a row.
Im going to reflash the PCM this afternoon. is there anything else that you can think of that it might be?
Also I have a wheel bearing assy (that has the ABS built into it) that has gone bad and being changed this morning, Could that cause the limp mode?
This did it once about a week ago and I thought it was just a glitch but now its done it the last 2 days in a row.
Im going to reflash the PCM this afternoon. is there anything else that you can think of that it might be?
Also I have a wheel bearing assy (that has the ABS built into it) that has gone bad and being changed this morning, Could that cause the limp mode?
08-09-2007, 12:10 PM
#2
12 Second Truck Club
iTrader: (5)
Join Date: Apr 2005
Location: Sittin on jackstands
Posts: 5,230
Likes: 0
Received 4 Likes
on
2 Posts
Re-flash your PCM damnit.
If your ABS sensor is messed up it could cause the VSS to calculate something different I guess (bad wording, but he'll understand)
I would think if it was cause of the ABS module you would have an ABS light too though. Just cause the wheel bearing is going out doesnt mean it would mess a sensor up
If your ABS sensor is messed up it could cause the VSS to calculate something different I guess (bad wording, but he'll understand)
I would think if it was cause of the ABS module you would have an ABS light too though. Just cause the wheel bearing is going out doesnt mean it would mess a sensor up
08-09-2007, 03:07 PM
#6
TECH Fanatic
Thread Starter
Join Date: Jan 2005
Location: Lafayette, Louisiana
Posts: 1,489
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Nick™
check your intake plumbing for any leaks
Well im putting my stock airbox back on tomorrow so that should fix that ----
so how do I check the MAF sensor?
08-09-2007, 03:11 PM
#7
TECH Fanatic
iTrader: (2)
Join Date: Mar 2005
Location: Red Stick, La
Posts: 1,966
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by BradS
so how do I check the MAF sensor?
look at it to make sure it's clean, if not use the special MAF cleaner from a part store and of course make sure it's plumbed in there well and no leaks around it
Trending Topics
08-09-2007, 09:24 PM
#8
TECH Fanatic
Thread Starter
Join Date: Jan 2005
Location: Lafayette, Louisiana
Posts: 1,489
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Nickâ„¢
with a black sharpie.... duhhhhh
look at it to make sure it's clean, if not use the special MAF cleaner from a part store and of course make sure it's plumbed in there well and no leaks around it
look at it to make sure it's clean, if not use the special MAF cleaner from a part store and of course make sure it's plumbed in there well and no leaks around iti cleaned the maf that day at your house when i cleaned my throttle body
08-10-2007, 04:18 PM
#9
TECH Addict
iTrader: (3)
Join Date: Dec 2006
Location: Alvin, Texas
Posts: 2,826
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by BradS
When I crank the truck for the 1st time in the morning it runs fine for a couple of mins then when I get around the corner it goes into limp mode and the SES light flashes at me. It will do that for a few mins then go right back to running fine and the flashing light goes away. Then it runs fine the rest of the day.
This did it once about a week ago and I thought it was just a glitch but now its done it the last 2 days in a row.
Im going to reflash the PCM this afternoon. is there anything else that you can think of that it might be?
Also I have a wheel bearing assy (that has the ABS built into it) that has gone bad and being changed this morning, Could that cause the limp mode?
This did it once about a week ago and I thought it was just a glitch but now its done it the last 2 days in a row.
Im going to reflash the PCM this afternoon. is there anything else that you can think of that it might be?
Also I have a wheel bearing assy (that has the ABS built into it) that has gone bad and being changed this morning, Could that cause the limp mode?
Limp Mode Brad?
Lisa
JFWY...