Last post on Nov 26, 2013 at 1:43 PM
You are in the Chevrolet Blazer
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Chevrolet Blazer, GMC Jimmy, SUV
#485 of 496 blazer stalls,spits and sputters
Mar 15, 2013 (2:54 pm)
HI, i have a 1998 chevrolet blazer 4.3L vortec V6. It was running fine at first. But it started the run very rough and shakes like crazy. the temperature gauge doesnt work even after installing a new temperature sensor. it does this everyday. sometimes on very short drives like at lunch it will drive fine on the way to the store and then drive like crap on the way back. the temp gauge moves from cold to hot and back to cold when ever it is starting the spit and sputter. it stalls at traffic lights and is a pain to get it started again.. i have to pump the accelerator to get it started when ever it stalls. when ever the spitting and sputtering problems occur when im driving it stops running like crap when i floor it. but stills runs like shit after. i dont have much $$$ and with a baby on the way i need to get this fixed. help very much needed. thank you.
#486 of 496 Re: dying at stop lights and bat. power loss [blazerneedshlp]
May 06, 2013 (6:36 pm)
did you ever figure this problem out?
#488 of 496 HELP s10 blazer engine wont run
Jul 27, 2013 (1:30 pm)
Have a 1994 s10 blazer. Have replaced fuel pump and filter in tank, inline fuel filter, throttle position sensor, rotator button and cap, iginition module in distributor. Still would idle all day long but when you started to drive it it would get hot then stop. we changed the catalic convertor started running great. thaT night it stopped again starting missing bad. fixed some vacumn line links still didnt fix it ..it is not coil we tried that.... any other suggestions?????
#489 of 496 Re: 1992 chevy 4.3 v6 won,t idle [zedd3111]
Aug 08, 2013 (6:53 am)
did you every find a fix to your truck? I know it's a 4 year old post, but I have the exact same issue and done the exact same thing...I even took off the whole exhaust system to eliminate plugged CAT...UGH! I'm at my wits end too. ANY help would be greatly appreciated.
#490 of 496 Re: 1992 chevy 4.3 v6 won,t idle [iamthor]
Aug 12, 2013 (6:52 am)
Well, I fixed it...It turned out to be the fuel pump. I replaced it and it fired right up with no issues. Lesson learned...fuel does not necessarily mean that the fuel pump is good.
#491 of 496 Re: 1992 chevy 4.3 v6 won,t idle [iamthor]
Aug 12, 2013 (7:22 am)
Remember: Dead or Dying Fuel Pump Will Not Give A Code.
90% of the time, the stalling issues will end up being a fuel pump.
The fuel pump is like any other electrical motor. Take the starter for example.
If you find the starter is burnt out, you can some times strike it with a small hammer or anything else with some weight, and you might get it to start again.
Now why none of the car companies will put a sensor on the fuel pump, is beyond me. It would actually be a simple thing to do and would stop alot of the heartache.
Something like this:
Key is put into ignition mode-No gas pressure? Send Error Code.
Key is put into ignition mode-No electric signal passing though? Error Code.
I can do this with simple programming to a microcontroller, yet none of the billion dollar car companies can add this feature into the system?
Now one other feature that could be very simple to intergrate into any vehicles system, The Code Read-Out onto a 0.50 cent LCD panel possibly on the fuse box, instead of having to take your broke down vehicle to any shop or car parts store to have it scanned.
Why don't they?
Because the car companies want you to pay top dollar for all of the repairs, the diagnostics and possibly get you back into the dealership to purchase a new vehicle.
FUEL PUMP PEOPLE, And prepare to pay out atleast $600.00 for a new one isf you vehicle is a 1998 or newer.
#493 of 496 95 blazer wont start till 20 pounds of oil pressure
Aug 25, 2013 (6:19 am)
i have a 95 blazer changed fuel tank fuel pump sending unit fuel lines spider and fuel regulator and fuel filter.It will just crank for 5 to 10 sec until the oil pressure gets to 20 then starts right up. I was thinking there is a rollover switch or something that is bad but can't find any info on it.
Runs great just wont start till 20 pounds of oil pressure.I dont hear the fuel pump at all when i turn the key over to try to prime it.Just have to crank it till it hits 20 pounds oil pressure then starts right up.It is quite annoying any help would be much appreciated thank you
#494 of 496 Re: 95 blazer wont start till 20 pounds of oil pressure [seaglassman]
Aug 25, 2013 (9:50 am)
Hi I am all new to this blogging, However I may have the solution to your problem, generally the Gm system has two circuits to the fuel pump, one with the relay that primes the system for those first 10 to 20 second of cranking the engine and the second one through the oil pressure switch that activates as soon as it reaches operating oil pressure.
You mentioned that you can not hear the pump when the key is turn on and that is a good indication that there is a problem with your fuel pump circuit (relay, wiring or fuse). try to get a wiring diagram for your fuel pump circuit through your local GMC dealer most of the time they will print it for nothing for you, that will help you out with your problem.
Hope this will help you out.