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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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#8 of 326 Re: reply [bigjoe85] by repairdog Aug 02, 2006 (1:19 am)
Replying to: bigjoe85 (Aug 01, 2006 7:21 pm) Fuel filter should be changed every 25-30k miles and is under the drivers seat area under the frame on the inside. Its always a pain to change up there - $10-15 part and about $50 labor. One end is quick connect squeeze tabs to release (after pressure released) and the other end requires 2 open end wrenches. Have to take the bolt out of the plastic holder also to get the filter out. Pressure test NOT normally done by auto stores but they may have a free reantal tester to use at home or take to a shop and they will do that and the filter plus analyze the problem so you don't throw too many parts at it.
#9 of 326 fuel sistem problem?? by jmojardin Aug 09, 2006 (11:51 am)
I'M DRIVING A 2001 GMC JIMMY V6 4.3L. LIKE 2 MONTHS AGO I NOTICE THE FUEL GAGE WAS NOT WORKING...I REPLACE THE FUEL PUMP ASSY. NOW THE GAGE IS OK BUT THE CAR CUTOFF AT ANY TIME,I REPLACE AGAIN THE FUEL PUMP, BUT THE PROBLEM PERSIST. THE VEHICLE SHUTDOWN WITHOUT PRIOR WARNING FOR NO REASON WHILE DRIVING OR AT COMPLETE STOP..I AM THINKING IF THERE IS ANY PROBLEM WITH THE FUEL FILTER, I NEVER REPLACED. ALREADY 75K MILES ON IT.IAM REALLY CONFUSE IF I HAVE TO REPLACE AGAIN THE FUEL PUMP FOR THIRD TIME. SOMEBODY SAY THERE MAY BE SOMETHING WRONG WITH THE THERMOSTAT. ANY IDEAS?? THANKS Replies to this message: repairdog (Aug 09, 2006 12:11 pm) gb_stewart (Jul 20, 2008 3:12 pm) silversmoke (Jul 30, 2008 10:45 pm)
#10 of 326 Re: fuel sistem problem?? [jmojardin] by repairdog Aug 09, 2006 (12:11 pm)
Replying to: jmojardin (Aug 09, 2006 11:51 am) First change the fuel filter a $15 part, then if problem still happens test the fuel pressure at the test port on the metal line at the top rear of the engine. Its a special tester and once you have it or get a shop to do it the pressure should be 54psi when running or alittle higher (but not lower than 53) and if there is a starting problem its 60psi with the key on engine off. Also check all connectinons at the top of the tank and there is a fuel pump relay in the fuse box under hood.
#11 of 326 How to replace? by bigjoe85 Aug 10, 2006 (12:58 pm)
Ijust got a fuel filter for my 01 blazer and i need help on switching the old one w/ the new one. How hard is it, should I let a mechanic do it, and what tools do I need if I replace it? Replies to this message: repairdog (Aug 10, 2006 3:55 pm)
#12 of 326 P.S. by bigjoe85 Aug 10, 2006 (12:58 pm)
P.S. very limited funds.
#13 of 326 Re: How to replace? [bigjoe85] by repairdog Aug 10, 2006 (3:55 pm)
Replying to: bigjoe85 (Aug 10, 2006 12:58 pm) One end is a snap or quick disconnect that you squeeze the 2 tabs and it pulls off (after pressure released). The other end requires 2 open end wrenches. The bracket it is in is held on by one 13mm bolt to the frame that has to be taken off to get the filter out of the bracket and the lines are simply snapped in to the top of that bracket. You will get gas on you and its kind of a pain but shops charge about $35-50 to change so up to you.
#14 of 326 Engine bogs when stepping on gas by niteman18091 Aug 11, 2006 (7:07 am)
When I drive down the road sometimes when I step on the gas the engine bogs and stalls, if I quickly put it into neutral and restart it will have all kinds of power for a few miles then do the same thing. I relaced the fuel filter, fuel pressure regulator EGR valve, spark plugs and cap, I put a fuel pressure gauge on the test port and it reads with KOEF 65lbs. and with the KOER it reads 58lbs. I also put a vaccuum gauge on engine and could find no leaks. Why does this do this and how do I correct the problem? Help this is a safety issue, my family uses this vehicle.!! Replies to this message: repairdog (Aug 11, 2006 2:36 pm)
#15 of 326 Re: Engine bogs when stepping on gas [niteman18091] by repairdog Aug 11, 2006 (2:36 pm)
Replying to: niteman18091 (Aug 11, 2006 7:07 am) What year and mileage? Aby codes (SES light on) and if so post them.
#16 of 326 Re: #15 of 15 by niteman18091 Aug 12, 2006 (6:16 am)
No codes come up until after it happens then it comes up oxygen sensers port 1 and port 2. You can step on the gas and the engine just bogs it has absolutely no power . Put the car in neutral ( while still moving ) count to 3 and restart and have all the power you want. Tried Hi test gas , fuel additives, still happens! This has me totally confused. Need help, someone told me to replace the computer.    The mileage is 124000 and the year is 1996 Replies to this message: repairdog (Aug 12, 2006 5:09 pm) niteman18091 (Aug 13, 2006 7:03 pm) repairdog (Aug 14, 2006 8:03 am) and 3 more...
#17 of 326 Re: #15 of 15 [niteman18091] by repairdog Aug 12, 2006 (5:09 pm)
Replying to: niteman18091 (Aug 12, 2006 6:16 am) Clean MAF sensor - tells computer mass airflow or rich/lean settings - could trigger the O2 sensor code if too rich. Check/clean EGR. This does have the newer style injection so could be fuel pump heats up and pressure drops - have to test at test port. Coil could be failing due to overheating due to ignition module never shutting off so always a low voltage to it. On from there. Replies to this message: niteman18091 (Aug 13, 2006 7:03 pm) repairdog (Aug 14, 2006 8:03 am) niteman18091 (Aug 14, 2006 3:10 pm) and 2 more...

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