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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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#21 of 326 Re: #15 of 15 [repairdog] by niteman18091 Aug 14, 2006 (3:10 pm)
Replying to: repairdog (Aug 14, 2006 8:03 am) I did have the injectors checked and even replaced the fuel pressure regulator . I checked the fuel pressure and it's KOEO 68lbs and with the engine idleing it'd 54lbs. which is within spec. I'm at wits end , the wife said if it's not fixed by weekend it's GONE, HELP, I LOVE THIS TRUCK!!! Replies to this message: repairdog (Aug 15, 2006 2:06 am) niteman18091 (Aug 15, 2006 2:51 am)
#22 of 326 not holding fuel pressure.... by 00blazer Aug 14, 2006 (5:35 pm)
I have a 00 blazer with the 4.3L vortec. Driving home one night from work it just died on me. I got it towed to a local shop and the found it to be the ignition rotor spun off hte shaft and put a hole threw the cap. So once this was fixed I started noticing that the truck didn't want to start all to easily. I've tested power and vacum lines. I've found that its not holding fuel pressure when the car is off. Any ideas on how to fix and whats involved? Any help would be appriciated. Thank you in advance... Replies to this message: repairdog (Aug 15, 2006 2:12 am)
#23 of 326 Re: #15 of 15 [niteman18091] by repairdog Aug 15, 2006 (2:06 am)
Replying to: niteman18091 (Aug 14, 2006 3:10 pm) Have you taken it to a Chevy dealer yet - once a local shop can't find it thats the next step - trying to find an intermittent problem is a pain - GM seen them all and Blazers have many. Replies to this message: niteman18091 (Aug 15, 2006 2:51 am)
#24 of 326 Re: not holding fuel pressure.... [00blazer] by repairdog Aug 15, 2006 (2:12 am)
Replying to: 00blazer (Aug 14, 2006 5:35 pm) Standard fix is a new fuel pump assembly in the tank, or possible pressure regulator on the injection assembly under the upper intake. Have to test at port on fuel rail with a pressure tester and watch the pressure to see if its within specs then if it drops with the key off (key on engine off should be min of 60psi and running 54psi). As a test turn your key on, wait a few seconds and see if pressure builds then start - anything lower than 60psi (from the articles on this injection type) state that it will not be enough to fire all 6 injectors in a rich start state.
#25 of 326 Re: #15 of 15 [repairdog] by niteman18091 Aug 15, 2006 (2:51 am)
Replying to: repairdog (Aug 15, 2006 2:06 am) The dealer put the new injectors and fuel pump in. I think I'm capable to change a SENSOR BUT THE DEALERS CODE READER SAYS THE SAME AS MINE. Maybe I should try another dealer??? Changing the coil this morning.
#26 of 326 Re: having trouble with the furl system [bigjoe85] by samm00 Aug 21, 2006 (3:32 pm)
Replying to: bigjoe85 (Jul 30, 2006 8:58 pm) Did you solve this problem yet - our 01 is also stalling gen when the temp outside is hot - told the pressure in the fuel pump is good?? Any advice welcome??? Replies to this message: niteman18091 (Aug 21, 2006 4:01 pm) samm00 (Aug 21, 2006 5:14 pm) niteman18091 (Aug 21, 2006 5:44 pm)
#27 of 326 Re: having trouble with the furl system [samm00] by niteman18091 Aug 21, 2006 (4:01 pm)
Replying to: samm00 (Aug 21, 2006 3:32 pm) No it still does it. The other nite it did it and I again had to put it in Nuetral while moving and then restart and I had all the power I wanted. I can't figure it out and it's really frustrating!!! Any one with any help would be greatly appreciated Replies to this message: samm00 (Aug 21, 2006 5:14 pm) niteman18091 (Aug 21, 2006 5:44 pm)
#28 of 326 Re: having trouble with the furl system [niteman18091] by samm00 Aug 21, 2006 (5:14 pm)
Replying to: niteman18091 (Aug 21, 2006 4:01 pm) We were told we have a Vapor lock - but they didnt know how to get rid of it? Replies to this message: niteman18091 (Aug 21, 2006 5:44 pm)
#29 of 326 Re: having trouble with the furl system [samm00] by niteman18091 Aug 21, 2006 (5:44 pm)
Replying to: samm00 (Aug 21, 2006 5:14 pm) I was always under the understanding that fuel injection eliminated that problem. Now don't quote me on that but I'm 80% sure thats the case.   Sounds like your emissions system isn't working properly or your fuel filter needs to be changed.   Is your service engine lite on ? If so have your dealer or mechanic check your codes to see where the problem may lie
#30 of 326 Stalling help by samm00 Aug 22, 2006 (6:44 am)
This started after our 01 Blazer ran out of gas, now stalling happens on going down hill and seems to be in hot weather, the fuel guage is also inacurrate - any links - ideas - we also had intermittent O2 sensor codes in the winter?????? We had a new filter and the fuel pump has been checked! Replies to this message: repairdog (Aug 25, 2006 4:23 am)

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