Question about 2000 GMC Jimmy
I have changed my fuel filter, my fuel pump, and fuel is getting to the injectors, and i have spark...but the truck will still not start
Make sure the fuel pressure is to spec (65-70)psi
These V-6 engines had problems with the fuel injection poppets.They would gum-up and cause a hard-no start problem.check with your local dealer,some injectors had extended warranty period,because of the problem.if you spray alittle carb spray in the intake,does it start?
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
SOURCE: 1991 Chevy S10 Pickup
First check for battery voltage. Then make sure you have a check engine light when the key is in the run position. Make sure the fuel pump relay is good. Check to see if there is power on one side of the injectors, if these wires have a short to voltage or ground the injectors will not funtion properly. In this system the injectors are supplied with constant power and ground controls pulse width. In these blazers and s-trucks PCM ground sees to become an issue. In mine I directly routed the system grounds to a metal body panel under the right side of the dash. In my Blazer I swapped out the motors and converted from and automatic to a manual transmission. And another problem I found was when I lifted the dash to install my clutch pedal, I broke my brake light switch. In an automatic the brake pedal switch interups the ses light circuit. If the PCM dosent sense the ses light on the system cannot ground. Good Luck with it, At the time I had completed my second of four automotive level so it took me a bit to figure it out on my own. Once I took my level 3 (electricl) it sunk in alot quicker. Happy hunting, don't get too pissed off.
Posted on Nov 19, 2008
SOURCE: 96 s10 won't start
I would start with checking the battery, belts and fuses. Some places like Autozone will check the battery under a load for free. If all that checks out, then move on to fuel and spark. That will give you a good indicator of where to go from there. If you have no spark then you are moving on to your coil, distributor, etc. If you have no fuel then you would check your filter, injectors pump etc. Keep in mind that a broken timing chain/belt will cause a no start condition as well, as will a faulty neutral safety switch, so if nothing else seems to add up you might check those as well. good luck
Posted on Jan 29, 2009
SOURCE: Chevy s10 will not start
check your battery voltage first sir! it should not be at most 12 volts. if it's almost 10volts or lower, then it needs recharging or replacement, (which ever you prefer! you may having spark at 10volts but its not enough to ignite the air-fuel mixture inside the engine.
check also the air filter, there should be not water trace in it! check oil, should not be milky.
Posted on May 28, 2009
when you turn the key on you should hear a humming or whinning noise coming from the fuel tank if not,then its your fuel pump which is a very common problem
Posted on Sep 28, 2009
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