I am having stalling issues when im at a stop light or sitting in parked can someone help me please?

20

Asked by Sep 05, 2015 at 05:20 PM about the 2009 Chevrolet Malibu LT

Question type: Maintenance & Repair

I have be have this intermittent stalling issue for a few weeks now. When i
come to a stop the rmp needle goes up and down and then it jerks like its
gasping for gas. I took it to the dealership there were no codes in the system
no check engine light comes on when this is happening either.  I had a air
induction service done. I had a local macanic look at it as well he said i had no
vaccum hose leaks nothing so i dont know whats going on.

11 Answers

25,465

change the fuel filter first..add 2 cans of ZMAX to the fuel...

1 of 1 people found this helpful.

What was done on an "Air induction service "? Specifically... ?

20

They were suppose to clean the throttle body, fuel injectors, intake valves and ports, remove combustion chamber deposits and balance of fuel and air in system. I'm just confused because I'm reading so many things that could be wrong.

I will vouch for Kelly, he knows his stuff about engines but I had to look up this ZMAX stuff. Trying to find out what it really is, actual ingredients. But nothing but fantastic claims (from manufacturer) but again, Kelly can be trusted in his advice

Ok, we were posting at the same time. But what you describe sounds like somebody pouring some additive in to fuel. I hope you didn't pay a lot for this

Balance of fuel and air is determined by the ECU. Nothing else, from the data it gets from 02 sensors. MAF, MAP, A/F ratio sensor in exhaust stream, and the computer uses that data to set air/fuel trim. It's not adjustable Now, this ZMAX is a supposed 'micro lubricant' this is the same thing I use to clean and lube my firearms

20

I read online that my car doesn't have a replaceable fuel filter its in the tank??

1 of 1 people found this helpful.

http://www.chevymalibuforum.com/forums/showthread.php?t=9309

Non serviceable, in the fuel tank. I put the link separate to make it easy ti hyperlink if you choose to see the forum thread, It's kinda extreme to say completely non-serviceable, but the filter is a mesh sock on the pick-up on the pump in the tank. Difficult, time consuming, but unlikely the problem anyway Unless you got some hard-core contamination, sand in the tank, either by vandalism or... well I don't know what else it could be. The sock will capture and hold a tremendous amount of debris, it's designed for the life of the car.

20

Ok yeah idk what it could be its so frustrating. What should I look for next if it's not the fuel filter?

1 of 1 people found this helpful.

With no OBDII codes, that is somewhere between difficult and impossible to diagnose from behind a keyboard. Sorry my friend.

1 of 1 people found this helpful.

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