Question about 2000 Chevrolet Blazer
Replaced the fuel pump a month ago..running fine. The other day I slowly accelerated out of a drive thru and it just stalled. Will not start back up for nothing! It will crank over and over, but will not catch. Fuel pump engages or comes on, spark plugs changed and have spark, fuel filter changed, has fuel pressure (witnessed line being bled), battery charged fine, already tried to "reset" the security system, disconnected battery (just to see if doing that would even do anything). Hooking a computer up to it was pointless because it did not give off any codes. Could this be something with injectors? One book said something about checking an oil pressure switch to see if it was getting enough pressure and if it wasn't, it would shut down the truck's fuel or something like that?? Doesn't make any sense and it's frustrating b/c it could be so many different things. We're stumped over here and really refuse to pay a ridiculous amount of money to a dealer, especially if we can do it ourselves. Any help would be greatly appreciated.
Ours had same problem, turned out to be combo issue of magnet in security system, and leaking SPIDERS (fuel injectors) causing low fuel pressure. have these checked before diving into fuel pump etc, we spent nearly $2000 getting figured. If your computer wont read at a shop, thats your first clue on the security issue. If your fuel pump is heard and pumping just below recommended, then have the spiders checked for leaks. Good luck
Posted on Mar 30, 2009
I would say the car is not getting any fuel. you could try replacing the fuel filter which is cheap. It could also be the fuel pump which is probably in the tank.(try tapping the gas tank with a hammer lightly) If the car starts then it is probably the pump. The last thing i think it could be is that is isn't getting any spark. Take the spark plug wire off the plug itself and put a screwdriver in the hole and make sure it is touching the metal part of the plug. Have someone try to start the car and hold the screwdriver near a piece of metal, if you see a blue spark then the car is getting spark, if you see nothing then you probably have a bad coil.
Posted on Jun 25, 2008
I had the same problem with my 2000 blazer. There was no service engine light or anything car would just tryin turn over but wouldnt start, had good fuel presure come to find this is a very common problem with these vehicles its most commonly the fuel regulator i changed that and it fixed the problem.
Posted on Oct 11, 2008
Trusk had 60 pds of fuel pressure and had good spark to plugs , clean ( crank sensor ) and i had put to much starting fiuld and gas in tring to get started ,filed out spark plugs. SO CLEAN SENSOR UNDER CRANK PULLY FIRST.AND DO NOT FLOOD PLUGS.
Posted on Jan 24, 2010
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Posted on Jan 02, 2017
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