NO... You need to check for a vacuum leak. We would be able to help you more if WE new the year.
There can be several things that will cause your 2003 Chevy Malibu to run rough and not shift into fourth here. The probable cause is a lack of fuel. Due to a bad fuel injector.
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There is no air in line Fuel pump pressursizes line and air automatically bleeds from the injector Not enough fuel or pressure will cause rough start
The Chevy 4.3 egr system is important to the proper operation of the engine. A clogged egr can cause rough idle or low fuel economy, among other things.
you most likely need an alignment or your tires just need to be balanced
Scan for codes, some parts store do it free.
When the AC is on most vehicles increase the idle speed. That can often mask the problems that cause rough idle. The primary suspects are: EGR valve, tune-up, sticky or plugged injectors and valves.
There are many things that can cause a rough idle on this car. The computer could be going out, the engine may not have enough oil, and the engine may not be getting enough fuel or electricity.
my 1990 300zx is idling rough what could cause this?
It starts by missing and running rough when pulling a load, and worsens until the engine won't run at all.
i have an 84 tercel with the same problem, it takes alittle gas to keep her goin but once warmed up it runs great, i fix a few small vacuum leaks and that helped alot but i still have the problem, let me know if you find the culprit
vacuum leak?