Steve Williamson Posted January 16, 2006 Report Share Posted January 16, 2006 1993 Lumina Z34 stalling The car just quits running when driving the highway or stopping for a light. It idles smooth and there's know lunge when it stalls. I had a code 32 and changed the EGR valve. After this change I got a 43 code which is the knock sensor. Talked to some mechanics and was told that wouldn't cause the stalling problem. So I changed the ignition module also the 3 coils. Drove over 60 miles and it did it again. Pull over and it starts imediately. Its like turning the key off. Any ideas? Quote Link to comment Share on other sites More sharing options...
Intlcutlass Posted January 16, 2006 Report Share Posted January 16, 2006 1993 Lumina Z34 stallingThe car just quits running when driving the highway or stopping for a light. It idles smooth and there's know lunge when it stalls. I had a code 32 and changed the EGR valve. After this change I got a 43 code which is the knock sensor. Talked to some mechanics and was told that wouldn't cause the stalling problem. So I changed the ignition module also the 3 coils. Drove over 60 miles and it did it again. Pull over and it starts imediately. Its like turning the key off. Any ideas? At night in & your drive, pop the hood with the engine running. Look to make sure your spark plug wire's aren't shorting someplace on the head. Quote Link to comment Share on other sites More sharing options...
GOT2B GM Posted January 16, 2006 Report Share Posted January 16, 2006 Is your remote positive battery terminal nut tight? Quote Link to comment Share on other sites More sharing options...
95oldsVan Posted January 16, 2006 Report Share Posted January 16, 2006 Still sounds like an egr problem though...but go check your battery terminal wires first.I had a car that acted like this and turned out the negative wire was coming loose and would start,run and cut out.The start back up fine. Check all the wirings and etc.Check the simple stuff,be sure the ecm is fully plugged in as well.Check all the fuses too.Always go with the basic stuff first. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted January 17, 2006 Report Share Posted January 17, 2006 2 words... crank sensor. Quote Link to comment Share on other sites More sharing options...
Prospeeder Posted January 17, 2006 Report Share Posted January 17, 2006 2 words... crank sensor. Random Stalling, no starting for awhile, then just starting for no reason later, crank sensor for sure Quote Link to comment Share on other sites More sharing options...
Steve Williamson Posted January 29, 2006 Author Report Share Posted January 29, 2006 White93z34, imediately does mean wait a while Quote Link to comment Share on other sites More sharing options...
White93z34 Posted January 29, 2006 Report Share Posted January 29, 2006 so your saying that you gota wait awhile before it will restart? if i were in your situation, i'd replace both the crank and knock sensor, since you have to pull the alternator to get at them, may as well do them both and save yourself a headache later on. Quote Link to comment Share on other sites More sharing options...
ShockTherapy Posted January 29, 2006 Report Share Posted January 29, 2006 check the injectors ? Quote Link to comment Share on other sites More sharing options...
Slade901 Posted January 31, 2006 Report Share Posted January 31, 2006 Just like they said, check or replace the CKPS (Crankshaft Position Sensor). Just be careful not to break that into pieces and take it slowly. You may need a pry bar to help it loose because it's harder to take it out because it has magnet on it. Check the CKPS wires too to make sure it's not bare and rubbing on a metal surface. On my vehicle, I did have the exact same problem. It turns out that the ICM was getting sprayed by the excess coolant coming out of the coolant reservoir cap as the coolant temp rises up. I replaced the coolant reservoir cap. No more coolant spraying and no more problems. Quote Link to comment Share on other sites More sharing options...
roomylumy Posted February 10, 2006 Report Share Posted February 10, 2006 Stall at lights, and starts right back up....I had that problem and it turned out to be the torque converter. I unplugged it since I didn't do a whole lot of highway driving and didn't have the problem again. Quote Link to comment Share on other sites More sharing options...
roomylumy Posted February 10, 2006 Report Share Posted February 10, 2006 Stall at lights, and starts right back up....I had that problem and it turned out to be the torque converter. I unplugged it since I didn't do a whole lot of highway driving and didn't have the problem again. Quote Link to comment Share on other sites More sharing options...
pose_Z34 Posted December 1, 2008 Report Share Posted December 1, 2008 My Z34 is a 92, and stalls every once in a while at a stoplight, but starts back up. Mine's a 5-speed so the torque converter isn't an issue. Crank and/or knock sensors then? Quote Link to comment Share on other sites More sharing options...
dirt_igirt Posted December 1, 2008 Report Share Posted December 1, 2008 my 91 grand prix stalled while at stop sings and light and it was kinda slugish i replaced the fuel filter problem solved 90sEraWhips 1 Quote Link to comment Share on other sites More sharing options...
pose_Z34 Posted December 1, 2008 Report Share Posted December 1, 2008 I'll add that to the to-do list Quote Link to comment Share on other sites More sharing options...
spiderw31 Posted December 1, 2008 Report Share Posted December 1, 2008 Holy old thread batman! IIRC, GM updated the injectors because of exactly what you describe pose_Z34, the random stalling at traffic lights. That could possibly be the problem, maybe someone will chime in regarding the possibility Quote Link to comment Share on other sites More sharing options...
pose_Z34 Posted December 1, 2008 Report Share Posted December 1, 2008 It starts right back up and runs fine. This only happens maybe once a day. Also, I have an issue withhigh idle when cold, but I'm sure it's the LIM gaskets. They're due to be changed anyway due to having over 150K. Quote Link to comment Share on other sites More sharing options...
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