Surgin problems
#1
Surgin problems
I have a 2006 GT, 4.6L v-8. From time to time I am experiencing "Surging". At one particula instance, the car defaulted to the "Limp Home" mode,(poor acceleration, no shifting into overdrive, throttle control indicator light on. After being shut off for an hour, the car ran perfect with no problems. The computer failed to indicate any history of the problem, however the surging has begun again. Is this a problem with the throttle body or could it be a sensor going bad?
#2
I would check and clean the TB. I would change the fuel filter. Both are very easy to do. If you unfamiliar with it....... I followed the DIY directions from American Muscles instructions link. Thats where I bought the fuel filter.
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
#5
Try to grab a code if your engine light comes on. Which I think usually does happen when you get limp mode.
Fuel filter and throttle body cleaning are great places to start.
Is your car tuned and do you have any mods?
Fuel filter and throttle body cleaning are great places to start.
Is your car tuned and do you have any mods?
#6
I would check and clean the TB. I would change the fuel filter. Both are very easy to do. If you unfamiliar with it....... I followed the DIY directions from American Muscles instructions link. Thats where I bought the fuel filter.
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
Fuel filter will cause if he hasn't done it ever 30k miles
He would also notice hard to start.
How many miles? Any other mods?
Sounds like a TB sensor and MAF. I would clean the MAF and replace TB sensor if your TB has signs of sludge
Last edited by zanypunk; 03-04-2012 at 07:26 PM.
#7
I was going to get at this.
OP, did this limp home mode occur within a few days of a good rain or pressurized car wash?
The reason I ask for codes (aside from them being very useful) is because I had an issue with a sticking throttlebody though it was clean and then replaced. I got limp home mode and the codes indicated the throttle position sensor was incorrect. Testing with a multimeter and replacing the TB and the TBS proved that those were not the issue. (See my other thread: https://mustangforums.com/forum/4-6l...r-issue-2.html which I will be updating after I fix one more issue when it's warmer). I had the dreaded water leak and I began noticing every time it went in to limp mode was after a heavy rain or going to a self serve car wash. I had water pouring in to my car right on top of the Smart Junction Box. After stopping the leaks and drying everything out, I haven't had limp mode since then.
OP, did this limp home mode occur within a few days of a good rain or pressurized car wash?
The reason I ask for codes (aside from them being very useful) is because I had an issue with a sticking throttlebody though it was clean and then replaced. I got limp home mode and the codes indicated the throttle position sensor was incorrect. Testing with a multimeter and replacing the TB and the TBS proved that those were not the issue. (See my other thread: https://mustangforums.com/forum/4-6l...r-issue-2.html which I will be updating after I fix one more issue when it's warmer). I had the dreaded water leak and I began noticing every time it went in to limp mode was after a heavy rain or going to a self serve car wash. I had water pouring in to my car right on top of the Smart Junction Box. After stopping the leaks and drying everything out, I haven't had limp mode since then.
#8
I would check and clean the TB. I would change the fuel filter. Both are very easy to do. If you unfamiliar with it....... I followed the DIY directions from American Muscles instructions link. Thats where I bought the fuel filter.
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
I would do those first and see what happens. Are you sure your fuel is good? No water in there?
#9
I was going to get at this.
OP, did this limp home mode occur within a few days of a good rain or pressurized car wash?
The reason I ask for codes (aside from them being very useful) is because I had an issue with a sticking throttlebody though it was clean and then replaced. I got limp home mode and the codes indicated the throttle position sensor was incorrect. Testing with a multimeter and replacing the TB and the TBS proved that those were not the issue. (See my other thread: https://mustangforums.com/forum/4-6l...r-issue-2.html which I will be updating after I fix one more issue when it's warmer). I had the dreaded water leak and I began noticing every time it went in to limp mode was after a heavy rain or going to a self serve car wash. I had water pouring in to my car right on top of the Smart Junction Box. After stopping the leaks and drying everything out, I haven't had limp mode since then.
OP, did this limp home mode occur within a few days of a good rain or pressurized car wash?
The reason I ask for codes (aside from them being very useful) is because I had an issue with a sticking throttlebody though it was clean and then replaced. I got limp home mode and the codes indicated the throttle position sensor was incorrect. Testing with a multimeter and replacing the TB and the TBS proved that those were not the issue. (See my other thread: https://mustangforums.com/forum/4-6l...r-issue-2.html which I will be updating after I fix one more issue when it's warmer). I had the dreaded water leak and I began noticing every time it went in to limp mode was after a heavy rain or going to a self serve car wash. I had water pouring in to my car right on top of the Smart Junction Box. After stopping the leaks and drying everything out, I haven't had limp mode since then.
#10