Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello, my name is***** for the question. Can you tell me if the check engine light is coming on when this occurs and what size engine you have?
Thank you. I have one last question. How many miles are on the vehicle?
Since the check engine light is not coming on you have a few common issues that will cause this. Most of the time this is caused by a failing torque converter in the transmission, a dirty air flow meter, or a fuel pressure problem. Is this something that you planned on diagnosing and fixing yourself.
What I would do first is remove the mass air flow sensor. This is located in the air intake between the air filter and the engine. Remove it and clean it out with mass air flow sensor cleaner. If that does not help I would check the fuel pressure with a pressure gauge. If the pressure is fine there then you may have to remove the transmission pan looking for signs of material showing that there is an internal failure.
No problem. Let me know if you need more help after trying this.