Rough Running Engine Due to Vacuum Leak on Pontiac Grand Am

Problem Description and Possible Solution

The engine vacuum hose to the MAP sensor may crack resulting in a vacuum leak causing the engine to run rough and/or stall.

Problem Data
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Average mileage: 158,928 (84,600–226,000)
Engines affected: 2.2L 4 Cylinder, 2.3L 4 Cylinder, 2.4L 4 Cylinder
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 2000, 2001, 2003
18 people reported this problem
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Viewing 1 - 7 of 7 comments
my car keeps cutting off when i stop at a stop sign or when i try to accelerate after stopping and the service engine light is on.
rough idle and start up. Sputtering uphill and on acceleration
Stalls when in town when trying to take off from a light or stop sign/
I have a 2000 Olds Alero 2-door Coupe, with only 86,000 miles on it now. The first time my engine stalled was about 5 months ago as I was turning from one country road onto another -- the engine just quit half-way through the turn. I rolled to the side of the road, and the engine re-started up right away. It was a very hot day, so I blamed the weather. The second time was about 2 1/2 months ago, and it was also hot. I had stopped at a stop sign, and it stalled when I started to take off. The third time was 5 weeks ago, and was similar. The 4th and 5th times were 3 days ago, and only 10 minutes apart -- the last was just as I was entering a roundabout (rotary) and as I accelerated, it just stalled and quit (which make the car driver behind me very angry).

I took it to Thompson Chevrolet/Buick/GMC (Patterson, CA) where I bought the car used in 2002, with 20,000 miles on it already. It has always been a great little car for me, getting 30 MPG on highway trips. They worked on it for a few hours today, and found that the "engine hose to the MAP sensor had a hole in it". This Oldsmobile apparently had a Pontiac engine in it from the onset. Replacement of the hose, clean out of the area, repairs, and labor only cost me $147. Very happy that they found the cause easily, and that I didn't have an accident somewhere along the way in those 5 months. My "check your engine" light had gone on about 3 times during those 5 months, but it went off within a few days each time, so I ignored that.
New vac line to the sensor.
Check engine light came on. Codes PO105 & PO108. Replaced vacuum hose.
My car stalls at cold temps. and the check engine code is on for evap system