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Chevy Blazer Starting and Stalling Problems

324 messages,  Last post on Nov 14, 2009 at 8:20 AM

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#267 of 324 Re: Odd starting problem [jsbartrum] by elaney1981 Apr 01, 2009 (9:07 am)
Replying to: jsbartrum (Apr 01, 2009 8:19 am) Sounds to me like the fuel pressure regulator, try to push the gas pedal all the way down while cranking mine did the same thing.
#268 of 324 Battery - starter or both. by duntov Apr 01, 2009 (10:07 am)
The problem could be the battery, starter solenoid or the starter or it could be all of them. If the battery and the connections are known to be good, the starter or the starter solenoid may be suffering from "heat soak" since the engine starts when cool but does not start when the engine is hot. Heat soak is an indication of a bad starter and/or starter solenoid. That is because the contacts and windings in those items have higher resistance when the battery is hot and a weak battery cannot overcome the resistance. A new battery will sometimes start a engine even if it has a bad starter or solenoid by overcoming the higher resistance in the heat soak condition.   It is not wise to go the cheap route and just replace the solenoid and neglect to replace the starter. They should be replaced as a unit because it is nearly the same amount of labor to replace either one and it is not a pleasant job, so you do not want to do it twice or pay for having it done twice. Never tell a auto repair shop what to replace. Always let the repair shop technician tell you what needs to be replaced.. Unscrouplous repair shops are just waiting for someone to tell them what to replace. Then they are off the hook if it does not fix the problem..   When I was a junior in high school, I replaced a starter solenoid on my 1955 Studebaker Champion 6-cylinder when it failed to start engage the starter when we were on the beach at Galveston. It was easy on that vehicle and I did not even have to get under the car. It is impossible to replace the starter and solenoid without raising the car on a Blazer or any V6 or V8 for that matter. If I was still physically able, replacing the starter and solenoid on a S10 Blazer would be a 4 hour job for me.   Starters and starter solenoids wear out slowly over a period of time similar to shock absorbers. You do not know how bad they were until you replace them.
#269 of 324 Re: 2001 Chevy Blazer wont start [delk1977] by fixit8 Apr 11, 2009 (11:22 am)
Replying to: delk1977 (Dec 20, 2006 12:24 pm) I had this same problem with my 2001 Blazer. i had to leave it at work overnight.i had it towed to a machanic the next day he put the key in and it started right up. he couldn't fine a problem. it started up fine for about 3 weeks,then same thing happen.so i did some research and this is what i found out.GM has serveral security systems.on the 2001 Blazer it is the pass key version so if your key becomes worn the system does.nt recognize your key the same cane happen with key that are not from the dealer. the good news is there is a easy fix. you have to reset the system, her's how(put the key in the ignition turn it to the start position the truck want start release it to the on position leave it in that position for 10 min.then turn the key to the off position wait 5 sec. then do this 2 more times. after the third time the next time you insert the key the system will recognize the key and start. it worked for me . Try IT..... cost 30 min. of time
#270 of 324 2002 Blazer intermittant start/stall by lpz Apr 12, 2009 (5:54 pm)
2002 Blazer intermittantly will stall right after starting. I have to hold the accelerator for about 10 minutes until it idles normally (500 - 600 rpm) to go. Most times it starts and runs just fine. I never can tell when or where this stall problem will occur. It could be the first start of the day or it could happen after the 2nd, 3rd or 4th stop/start - I don't know when it will happen. All diagnostic codes of the computer come back normal and it doesn't happen while the service man has it.
#271 of 324 Fuel pump or injection system? by dself Apr 27, 2009 (5:21 am)
I have an 87 blazer with a 350. Wouldnt start yesterday, poured some fuel in the throttle body and it did and then died, is it the fuel pump in the tank or the injection system and is there a test to eliminate on or the other? Replies to this message: jlflemmons (Apr 27, 2009 4:58 pm)
#272 of 324 Re: Fuel pump or injection system? [dself] by jlflemmons Apr 27, 2009 (4:58 pm)
Replying to: dself (Apr 27, 2009 5:21 am) Turn the key to "on" without going to the start position. You should hear a buzzing sound from the fuel tank as the fuel pump primes up. If you don't, turn the key off, and kick the bottom of the fuel tank two or three times and try starting again. Don't laugh, this is a well established "emergency recovery" for a dying fuel pump. If you do hear the buzz as the pump primes, check your fuel filter, and check for fuel pressure at the throttle body.   I am betting on a dying fuel pump.
#274 of 324 Rough starts but runs fine by zcarp Apr 28, 2009 (7:08 am)
Have a 2001 4.3 chevy blazer. have replaced spark plugs, fuel filter, air filter, egr valve. engine runs fine gets satisfactory gas milage. My problem is the initial start. Engine rumbles upon on start-up. Like the whole engine shakes. Engine always starts and runs fine but the initial start is always rough. when you shut the engine off it does the same thing. Some times worse than other. Any suggestions why this is happening? More of an annoyance than anything.
#275 of 324 1990 chevy blazer need sum help!!!! by marasmom25 May 16, 2009 (9:48 am)
1990 full size blazer with a tbi 350 its stalling out only after it gets warm idles great then try to rev it up after its warm and it stalls out 1800 rpms even does so while driving but always restarts.it hasnt thrown any codes good coil cap, rotor and wires can anyone help??? Replies to this message: jlflemmons (May 16, 2009 2:28 pm)
#276 of 324 Re: 1990 chevy blazer need sum help!!!! [marasmom25] by jlflemmons May 16, 2009 (2:28 pm)
Replying to: marasmom25 (May 16, 2009 9:48 am) Fuel filter?

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