Monte Carlo Repair Help Have a Monte problem and need help? Good at troubleshooting? Discuss it here!

6th Gen ('00-'05): Stalling Trouble!

  #1  
Old 01-27-2019, 04:54 PM
3 Year Member
1 Year Member
Thread Starter
Join Date: Aug 2014
Posts: 11
Default 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.
 
  #2  
Old 01-28-2019, 05:01 AM
Join Date: Oct 2009
Location: around cal city,il
Posts: 3,136
Default

Unplug the MAF first and see if the problem is gone.. If so, its the MAF...
 
  #3  
Old 01-28-2019, 07:40 AM
drivernumber3's Avatar
Monte Of The Month -- May 2015
Monte Of The Month -- March 2017
5 Year Member
3 Year Member1 Year Member
Join Date: May 2013
Location: Nebraska
Posts: 4,208
Default

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  
Old 01-28-2019, 08:39 AM
ChibiBlackSheep's Avatar

Monte Of The Month -- August 2014
10 Year Member
5 Year Member3 Year Member1 Year Member
Join Date: Sep 2008
Location: Wyncote, PA
Posts: 24,820
Default

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.
 
  #5  
Old 01-28-2019, 04:40 PM
3 Year Member
1 Year Member
Thread Starter
Join Date: Aug 2014
Posts: 11
Default

Originally Posted by ChibiBlackSheep View Post
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.
It nearly died twice the night before, stepping on the gas would nearly stall it, back off and going more gently seemed to work.

On the other side, when it would nearly die while idling then stepping on the gas a bit would keep it going.
 
  #6  
Old 01-28-2019, 07:52 PM
Join Date: Nov 2017
Location: Isanti, MN
Posts: 825
Default

[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.
 
  #7  
Old 01-29-2019, 08:31 AM
ChibiBlackSheep's Avatar

Monte Of The Month -- August 2014
10 Year Member
5 Year Member3 Year Member1 Year Member
Join Date: Sep 2008
Location: Wyncote, PA
Posts: 24,820
Default

Originally Posted by Yellowiscool View Post
It nearly died twice the night before, stepping on the gas would nearly stall it, back off and going more gently seemed to work.

On the other side, when it would nearly die while idling then stepping on the gas a bit would keep it going.
Yep, sounding more and more like FPR. Just pull that line and check it
 
  #8  
Old 01-29-2019, 06:32 PM
3 Year Member
1 Year Member
Thread Starter
Join Date: Aug 2014
Posts: 11
Default

Originally Posted by ChibiBlackSheep View Post
Yep, sounding more and more like FPR. Just pull that line and check it
If it is the FPR, is it a difficult fix?

(It's -50 degrees right now so I'm waiting to the weekend to do any work on it.)
 
  #9  
Old 01-30-2019, 10:45 AM
ChibiBlackSheep's Avatar

Monte Of The Month -- August 2014
10 Year Member
5 Year Member3 Year Member1 Year Member
Join Date: Sep 2008
Location: Wyncote, PA
Posts: 24,820
Default

Not difficult at all. A new FPR, a set of snap ring pliers, and just replace.
 
  #10  
Old 02-02-2019, 12:36 PM
3 Year Member
1 Year Member
Thread Starter
Join Date: Aug 2014
Posts: 11
Default

Originally Posted by ChibiBlackSheep View Post
Not difficult at all. A new FPR, a set of snap ring pliers, and just replace.
Well, I swapped out the MAF sensor, and the check engine light went away. Started it and it hasn't stalled. Popped off the little FPR tube, and I don't feel/see any fuel.

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?
 

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.