Go to a good mechanic and ask what is wrong. It can take a couple of hours, but you will find your problem.
is it running out of fuel?
AC/Delco
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.
sounds like your choke isn't working or isn't set correctly
you could have a bad fuel injector if dirt gets into the injector it will stay open
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Technically it will not cause the truck to run rough. Depending on what year the truck is. If its a 2000 or higher then it might have to be secure. But If your truck is running rough, it's either going to be spark plugs and wires, cap or rotor, coil pack, or fuel filter. I have just had this problem with my 1990 Chevy truck. The coil pack was loose, but that wasn't causing the problem. It was because the coil pack was bad. If you are having these problems check the minor things first. Mostly something electrical will be causing this problem.
When you experience a problem such as rough running when weather is damp or when they show any signs of cracking or damage.
have vehicle scanned to determine the problem
its a chev try changing fuel and air filters
300zx twin turbo lots of black smoke and running rough
It means there is a emission's sensor is indicating a problem with the system and needs to be checked out. A scan tool can retrieve codes from the Electronic control module. From the code given you can pinpoint the issue of the rough running condition.