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Chevy Blazer Starting and Stalling Problems

326 messages,  Last post on Nov 27, 2009 at 10:50 AM

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#302 of 326 Re: 2002 chevy blazer stalling problem [brendon77] by dp2226 Oct 02, 2009 (7:16 am)
Replying to: brendon77 (Oct 02, 2009 4:05 am) This could be a real stretch but I had a similar problem where I had trouble getting the truck to start every few days where I had to turn the key a couple times, then would stutter when first going, a couple times just stalled out. Drove myself nuts with hoses, fuel pressure etc.   Had a rusted battery terminal screw. It was being shaken when driving, caused the battery not to charge properly when driving. An easy test is to jiggle each wire separately(obviously do not create a connection with yourself and the car). You will hear the power go on and off.   Again probably not it but was listed as one of the first things to check and I ignored it because had one of those duralast batteries
#303 of 326 "95 Blazer no spark by chad21 Oct 04, 2009 (1:58 pm)
Hey guys, my blazer died and wont restart. I smell gas after 2 turn-overs,but cant find any spark from the coil. also every time I turn the switch, my ECM/Batt fuse blows. Any ideas? Replies to this message: elaney1981 (Oct 05, 2009 5:21 am)
#304 of 326 Re: "95 Blazer no spark [chad21] by elaney1981 Oct 05, 2009 (5:21 am)
Replying to: chad21 (Oct 04, 2009 1:58 pm) I think it might be the crank position sensor which is located on the front of the engine near the harmonic balancer and main pully. Try this first, its cheap! 20 dolars if that. if that will not work then its the ecm, it being bad will send mixed signals. But i would try the crank position sensor first.
#305 of 326 1985 s 10 blazer by jeffh20man Oct 05, 2009 (12:42 pm)
I need to keep this truck running but every time it gets hot, it stalls out. Unless you have your foot on the gas and the idle high, it will stall out every time. Does not do it when its cold . I have had a new motor put in , rebuilt carb (for high altitude) new fuel pump and water pump. Truck should run great......does for about 10 minutes and then it stalls. Any suggestions Replies to this message: jlflemmons (Oct 05, 2009 3:08 pm)
#306 of 326 Re: 1985 s 10 blazer [jeffh20man] by jlflemmons Oct 05, 2009 (3:08 pm)
Replying to: jeffh20man (Oct 05, 2009 12:42 pm) New coil? You are describing a very typical coil failure, and I doubt the new engine came with one.
#307 of 326 1985 S10 BLAZER by jeffh20man Oct 06, 2009 (8:15 am)
Yes sir, we put new coil, plugs, wires, I am wondering about the EFE relay switch, mounting on the firewall, it was buzzing ??? so I ordered another switch, when it comes in I will install it. Thanks Replies to this message: jlflemmons (Oct 06, 2009 9:11 am) jeffh20man (Oct 06, 2009 9:35 am)
#308 of 326 Re: 1985 S10 BLAZER [jeffh20man] by jlflemmons Oct 06, 2009 (9:11 am)
Replying to: jeffh20man (Oct 06, 2009 8:15 am) Relays can fail in a number of ways. Check the voltage going to the coil of the relay. If it is below the rated voltage (typically 12VDC on a car) the coil cannot fully engage the relay contacts and you will get the buzzing you describe. Usually the coil just fails, but I have seen cases where some of the windings will short and also cause the "buzzing" sound. Replies to this message: jeffh20man (Oct 06, 2009 9:35 am)
#309 of 326 Re: 1985 S10 BLAZER [jlflemmons] by jeffh20man Oct 06, 2009 (9:35 am)
Replying to: jlflemmons (Oct 06, 2009 9:11 am) I will check that once the switch gets here. Thanks and I will let you know !
#310 of 326 1992 chevy 4.3 v6 won,t idle by zedd3111 Oct 24, 2009 (3:09 pm)
I have a 1992 chevy pickup with a 4.3 v6. When i crank it i have to throttle the gas to keep it running. If i unplug the map sensor it will run at a high idle. I have tested the map sensor and it tests fine, i have even replaced it but that didn't work. I have replaced the ECM, IAC,TPS,EGR valve, fuel filter. I have cleaned the throttle body. I have checked the vacuum lines, distributor, wires and plugs. The vacuum selinoid works fine and the spark control module works fine.I had a diagnostic tool run on it but no codes. I have ohmed out the wiring and found no breaks. Can anyone give me some ideas on what this problem can be? Please help!!! Replies to this message: marblaze (Oct 28, 2009 5:23 pm) tidester (Oct 28, 2009 9:19 pm)
#311 of 326 95 Blazer stalling by jerzyboarder Oct 25, 2009 (3:40 pm)
I have a 95 chevy blazer automatic with a 4.3 vortex. When I drive it the RPMs jump around and then it stalls out if I hit the brakes. Does anyone have any Ideas of what may be wrong?

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