6th Gen ('00-'05): Stalling Trouble!
#1
Stalling Trouble!
I need help! I've got a 2002 Monte Carlo SS, with the 3.8 liter engine.
Friday I had an exhaust patch and oil change done, probably irrelevant but I figured its worth mentioning.
Saturday morning, I start the car and go inside for a few minutes. When I come out, the engine is off. It must have stalled. Starting it again is a bit rough, but it does go. I go to work. Later that night after work, it nearly stalls out while coming off a stop sign, twice. During that drive it gave a P0102 engine code, which the internet tells me is indicative of a problem with the Mass Airflow sensor.
Sunday I popped the MAF sensor out, cleaned it with an air duster, stuck it backk in. Started up fine, but after a few minutes of idling it stalled out again. So I started it again, took it out for a short drive to see if I could get any more info-- and then it died hard in an intersection. It wouldn't start again, and eventually the engine squealed loudly so I just had a friend drag it back home.
I've been having rough starts recently, but its been so cold I just chalked it up to that. I also noticed a fuel-scent when starting, but at the time thought it was a symptom of the hole in the exhaust. Now I'm not so sure.
Any advice? Replacing the MAF seems the most obvious option.
Friday I had an exhaust patch and oil change done, probably irrelevant but I figured its worth mentioning.
Saturday morning, I start the car and go inside for a few minutes. When I come out, the engine is off. It must have stalled. Starting it again is a bit rough, but it does go. I go to work. Later that night after work, it nearly stalls out while coming off a stop sign, twice. During that drive it gave a P0102 engine code, which the internet tells me is indicative of a problem with the Mass Airflow sensor.
Sunday I popped the MAF sensor out, cleaned it with an air duster, stuck it backk in. Started up fine, but after a few minutes of idling it stalled out again. So I started it again, took it out for a short drive to see if I could get any more info-- and then it died hard in an intersection. It wouldn't start again, and eventually the engine squealed loudly so I just had a friend drag it back home.
I've been having rough starts recently, but its been so cold I just chalked it up to that. I also noticed a fuel-scent when starting, but at the time thought it was a symptom of the hole in the exhaust. Now I'm not so sure.
Any advice? Replacing the MAF seems the most obvious option.
#3
Sometimes if the MAF is okay. There could be a leak in the Vacuum line or it has fallen off someplace. Also the Catalytic converter could be plugged too. That will cause a similar symptom. Good luck!
#4
Pull the vacuum line off the FPR and see if it's wet/soaked with fuel. It sounds more like an FPR issue than a MAF to me.
The MAF might stumble on a hot-start, but it shouldn't force the car to die at an intersection.
The MAF might stumble on a hot-start, but it shouldn't force the car to die at an intersection.
#5
On the other side, when it would nearly die while idling then stepping on the gas a bit would keep it going.
#6
[QUOTE=ChibiBlackSheep;716010]Pull the vacuum line off the FPR and see if it's wet/soaked with fuel. It sounds more like an FPR issue than a MAF to me. : Quote
I second this . It takes 2 seconds to check this and if it is leaking, you better address this immediately before you blow the intake off the engine.
I second this . It takes 2 seconds to check this and if it is leaking, you better address this immediately before you blow the intake off the engine.
#7
Yep, sounding more and more like FPR. Just pull that line and check it
#8
(It's -50 degrees right now so I'm waiting to the weekend to do any work on it.)
#10
But I did find an orange/red liquid on a flat part of the engine just below the FPR. I haven't run it for a week, and the temp has gone from -30 to 25 degrees so condensation build up is possible, maybe mixing with rust, but can you (or anyone) identify it?
First is what I got when I stuck a paper towel in it, second is the location. Might be totally unrelated, just a symptom of snow/moisture buildup?