Results 1 to 10 of 13
09-10-2012, 09:27 AM #1
2001 Suburban missing, bucking at 60mph
I was driving down I-85 south from Atlanta to Leesburg and still 150 miles away from home when it started missing and bucking at 60 mph and the whole vehicle was jerking back and forth. I slowed down to 55 mph and it was still doing it. I turned on the tow/haul switch to at least raise the rpm hoping it will help with the isse but it did not. Whenever I accelerate to 65-70 mph the whole vehicle will start jerking back and forth as if it was missfiring on some cylinders or running out of fuel. Oh, %#$t! my fuel pump is dying and may get stranded on the side of the road!
Well I decided to try one more thing before I gave up. I turned off the A/C and open the front windows. It was a nice low 80F outside so it would be a nice breezy drive. Wow! the jerking disappeared and I was able to cruise at 70 mph with no issues.
Question: Is it possible my a/c compressor is siezing up and affecting a 5.3L >250hp engine? I would think that the a/c compressor is so little to affect the engine. But I could be wrong.
I will check my a/c compressor tonight for internal mechanical binding by spinning the magnetic clutch pulley. Any other ideas? Thanks2011 Chevy Silverado LT 4WD 25k miles
2001 Suburban 2WD, 5.3, V8 176k miles
By graknil in forum Performance & FuelReplies: 1Last Post: 12-05-2010, 01:42 PM
By firstname.lastname@example.org in forum GM PowertrainReplies: 2Last Post: 08-03-2010, 11:40 AM
By dsquared in forum GM PowertrainReplies: 17Last Post: 06-01-2010, 03:55 PM
By i_build in forum Chevy Suburban Forum (GMC Yukon XL)Replies: 3Last Post: 10-22-2009, 07:08 PM
By pook7one in forum GM PowertrainReplies: 4Last Post: 01-23-2008, 04:10 PM