|
| Search | Car Forums | Gallery | Articles | Helper | Air Dried Beef Dog Food | IgorSushko.com | Corporate |
|
|||||||
 |
 Show Printable Version | 
Subscribe to this Thread
|
|
|
Thread Tools |
|
#1
12-30-2003, 10:40 PM
|
|||
|
|||
Shifting/revving problem...need advice.
Ok, I have a 98 GMC Z71 w/ a 350 vortec....it drives fine with no problems unless you "get on it"...then the rpms rev up but it won't hardly accelerate. However if I let off a little it will pick up speed. I noticed this on the interstate do around 65-70 but it also does it in lower gears too(but only when I "get on it". Any suggestions as to what this could be? My friend's dad had his dually put in the shop today for the same thing and he was told it's something to do with his fuel pressure, is this possible? Any help is appreciated.
|
|
#2
12-31-2003, 12:00 PM
|
||||
|
||||
|
Re: Shifting/revving problem...need advice.
You could have a partically plugged fuel filer.
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
|
|
#3
12-31-2003, 05:45 PM
|
|||
|
|||
|
Re: Shifting/revving problem...need advice.
GM had its share of problems with fuel delivery during the late '90's. The result in many cases will be that the trans downshifts, but the lean mixtures resulting from low pressures will cause the engine to lose power, and the trans will not upshift. Ray
|
|
|
POST REPLY TO THIS THREAD |
 |
|
|
