Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Did you do anything under the hood when working on it this morning?
Ok, thats what I was looking for.
Are you sure everything is put back together correctly?
This is the MOST common cause of the engine bogging down
The mass air flow sensor is the NUMBER 1 INPUT to the PCM for injector pulse width.
If there is any air leaking into the engine past the mass air flow sensor or not accounted for by the MAF sensor, it WILL cause this condition.
Well, your going to have to double check the connector and the air intake snorkle to ensure nothing was bumped by accident.
Ok, got it! Thank you for that information. You had not indicated that in your initial post.
In addition, it can still be a faulty MAF or cracked/ripped intake air snorkle. :)
Ok, would you like another possible cause?
Another very likely possible cause we see a lot causing this condition would be a faulty/weak fuel pump causing the engine to bog down due to low fuel pressure.
What is the fuel pressure at?
And how did you check the MAF and what were the readings/results?
You are most welcome!
Please let me know if you have any further questions.
We can also speak on the phone if you would like.
Let me know!