99 Malibu stalling issues - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Chevrolet When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 11-04-2012, 04:27 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2011
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
daveyboy43 is on a distinguished road
Default 99 Malibu stalling issues

I have a 1999 Malibu with 2.4 liter engine. For the better part of 8 weeks or so I have been fighting a very strange stalling issue with the car. It seems I can use the car early in the morning for a 35 minute drive with no problems but 9 hours later when I drive 35 minutes home the car will just die while driving and I must stress I've never had even one problem in the morning. I have replaced the TPS because of an earlier problem as well as the crankshaft position sensor. I have installed new ignition switch, new spark plugs, new fuel filter and swapped out the ignition module and coils as I had a spare set. I've only had 2 stalling issues in the last week, the first one I was driving and the car had just down shifted and I knew the engine was going to cut out as I had no reponse as I floored the gas pedal even though the rpm'* climbed to around 4000 it was like the engine had shut off but after several seconds it came back and I continued to drive. 5 days later it just died as I came to a stop sign. The check engine light is not on and there are no codes and the car runs great except for those stalling issues. I really need help on this one as I'm out of ideas.
daveyboy43 is offline   Reply With Quote
Old 11-04-2012, 05:14 PM   #2
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

You certainly have replaced everything I would normally associate with this problem. Have you checked fuel pressure yet. Your fuel pump may be starting to fail.

Check all vacuum hoses for leaks.
2kg4u is offline   Reply With Quote
Old 11-04-2012, 07:04 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2011
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
daveyboy43 is on a distinguished road
Default

I appreciate the info. I'm just so confused why he never has any problems in the morning. It'* like it makes no sense regarding a problem in any area like fuel, electrical or anything else because everything is happening later in the day. Here'* a perfect example, backing up 6 or 8 weeks the car was as always driving fine in the morning even if it was 65 or 70 degrees but 2 weeks ago it was cold here and tempatures never got out of the 40'* for the day but yet the car still died 5 minutes into the drive home. I'm sure I'd be pulling out my hair bit I don't have any.
daveyboy43 is offline   Reply With Quote
Old 11-04-2012, 07:46 PM   #4
Senior Member
Posts like a Supercharger
 
viniepooh's Avatar
 
Join Date: Dec 2010
Location: MIchigan
Posts: 177
Thanks: 0
Thanked 1 Time in 1 Post
viniepooh is on a distinguished road
Default

Dave, when u mention of it stalling - i wonder how exactly does it. in other words, does it just gets shut of as if a key is turned of, does it shake hesitate. And when it stalls, does it start back up and after what period of a time?
viniepooh is offline   Reply With Quote
Old 11-04-2012, 08:39 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2011
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
daveyboy43 is on a distinguished road
Default

When it stalls it just quits with no warning. It'* not like it'* running bad or sputtering or anything like that. I can be driving on the highway going 60 miles an hour and the car will just quit. There have been a couple times where the car has quit on me as I came to a stop sign, the car usually starts right back up and away I go. There have been just a few times where it took me a minute or so to get it started but I've never had to let the car sit for any extended period of time to get it to start back up. I also forgot to mention when listing parts that I've replaced, I've also replaced the fuel pressure regulator.
daveyboy43 is offline   Reply With Quote
Old 11-05-2012, 01:15 AM   #6
Senior Member
Posts like a Supercharger
 
viniepooh's Avatar
 
Join Date: Dec 2010
Location: MIchigan
Posts: 177
Thanks: 0
Thanked 1 Time in 1 Post
viniepooh is on a distinguished road
Default

Dave, the reason i asked about it is because i wanted to imagine how it looks. For example if a car shuts off as if the keys turned off, then it most likely to be electrical, if it sputters and all that, most likely some wrong w/it drive ability vise. regardless though it is a very confusing situation that u have. basically u said driving in morning 35min its ok but back home it stalls? hmm cant think of anything but if i come up wsomething ill chip in
viniepooh is offline   Reply With Quote
Old 11-05-2012, 07:59 AM   #7
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

personally i would be hook up the scanner and look at live data when it stalls, much easier than guessing. i use torque pro($5) for android phone and cheap obd2 to bluetooth adapter 20-30 and it shows alot. other than that ive had a issue with the maf that would shut down the car. but if you had the scanner you would see that. you could unplug it when you know it would normally do it but they dont run good in open loop sometimes but might help narrow it down
jwfirebird is offline   Reply With Quote
Old 11-05-2012, 09:12 AM   #8
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Dave, the symptoms you describe sound like a bad crank shaft position sensor, but you already changed that. I wonder if you got a bad one.
2kg4u is offline   Reply With Quote
Old 11-05-2012, 11:34 AM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Jan 2011
Posts: 73
Thanks: 0
Thanked 0 Times in 0 Posts
daveyboy43 is on a distinguished road
Default

I had a scanner hooked up to it and when it dies it shows nothing. I'm thinking of installing the old sensor to see if it dies will there be a check engine light and a code like there was that prompted me to replace sensor to begin with. If the new sensor is bad would I get a code or not?
daveyboy43 is offline   Reply With Quote
Old 11-05-2012, 11:44 AM   #10
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

No. A bad CPS sensor will not throw a code.
2kg4u is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2007 Malibu MAXX Electrical Issues Oldsmobile58 Chevrolet 4 02-26-2015 01:37 AM
Starting-Stalling issues Tanker01GT Pontiac 5 08-02-2012 04:52 PM
02 yukon xl denali stalling issues Zak_Davis GMC/Chevrolet Truck/SUV 1 11-14-2011 05:26 PM
Buick Century stalling, rough idle issues mjrgoodvibes Lounge 24 01-04-2011 01:17 AM
Stalling issues-unsafe @any speed! parkersnine 1992-1999 14 06-20-2010 09:30 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:54 PM.


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.