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94 gmc sierra 4.3 v6 manual, won't turn over, can hear fuel pump start when accessories turned on..won't fire, girl who needs help

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  • GMC Master
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The first thing I would check is fuel pressure. This type of fuel injection requires a minimum fuel pressure in order to operate. If fuel pressure is as little as one psi below minimum the vehicle will not start. You can try squirting a couple of shots of carb spray into the air snorkel while somebody cranks the engine over. If the engine starts and then dies you now you fpdeffinetely have a fuel issue. If the engine still won't start check for spark. Let me know what you find. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Posted on Feb 08, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: oil pan removal on 2002 gmc sierra

did you pull the rubber plugs between the motor and trans out? there are either nuts or bolts up there

Posted on Mar 15, 2009

evanusa
  • 197 Answers

SOURCE: need firing order on gmc sierra v6 for spark plugs

the firing order is
1-6-5-4-3-2

Posted on May 31, 2009

Rayvin1943
  • 97 Answers

SOURCE: how to align a 94 gmc sierra

Inner and outer ball joints?? If you mean tie rod ends u will need to set the toe in. Mesure the distance across the back of the tires and then across the front. The differance is ur toe in. Best take it to a wheel align shop and have it done properly it will save you a lot on tires.

Posted on Jul 15, 2009

10 Years
  • 60 Answers

SOURCE: I need the firing order for a 2003 vortec v6

1-6-4-5-3-2

clockwise rotation

front - 2-4-6

rear 1-3-5

good luck!

Posted on Sep 01, 2009

Testimonial: "thanks for the help."

  • 36 Answers

SOURCE: 4l60e tranny swap

No the 4l60e is a electronic transmission you need to find a 700r4 transmission which are very common. Check with your local junk yards and are pretty easy to install. About a full days worth of work for a person with general know how of vehicles.

Posted on Sep 23, 2009

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1998 gmc sierra start won


check for spark.. if no spark replace autoshutoff relay it controlls fuel and fire..

Dec 08, 2013 | 1998 GMC Sierra

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1998 GMC K1500 Sierra SL 4wd Truck will crank but not start I cant get any fuel


The first thing i would check is the fuel pressure. the fuel pump may be running, but that doesn't mean that it is putting out the right amount of fuel

Jul 30, 2013 | Cars & Trucks

1 Answer

Fuel pump


Testing of the fuel and ignition systems is in order. Intermittent problems need testing when the problem is present, otherwise it won't help find the problem.
I would start by checking for spark on a spark plug wire (or two or three plug wires, in case it may be a bad coil), during those times when it won't start. You need to see a blue, snapping spark to verify ignition system is working.
To check the fuel system, have the fuel pressure checked, and the injector circuit checked. Good that you hear the pump, but you don't know if fuel pressure is correct, or if fuel is getting into the cylinders. One short test is to spray starting fluid or carb cleaner into the intake while engine is cranking. If engine fires up for a few seconds, you know it is a gas related problem.
If ignition system is the intermittent problem, could be failing coil or coils, ignition module, crank position sensor, even the computer, or a wiring problem like a bad connection. Testing of each component will be required, or you could start throwing new parts at it, like many people do, until you find the bad part. Find a reputable mechanic-there still are a few, lol.

Jul 30, 2013 | 1998 GMC Sierra

1 Answer

1997 gmc sierra 3500 won't start


When you turn the ignition to start, do you hear the starter turning and the solenoid engaging the flywheel ? test your starter by jumping it and see if the engine turns over. If this works, then you might consider in checking fuel pressure. Do you have any codes in your ECM ?

Jun 24, 2017 | 1997 GMC Sierra

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I have a 1997 GMC Jimmy with a 4.3L Vortec V6. It will turn over but won't start. It's getting fire and fuel. All the dash lights come on when the ignition is turned on and you can hear the fuel...


On the vortec engines they require 56 pounds of fuel pressure to start a few pounds shy of that you have a dead vortec you will need a fuel pressure guage to verify

Nov 30, 2011 | 1997 GMC Jimmy

1 Answer

GMC 2000 sierra pick up 1500 sounds like it wants to start but won't turn over. Battery sounds good so I guess battery and alternator are ok. For several years fuel gauge doesn't work and...


It sure could be. But, first...by "won't turn over" you do mean it cranks at normal speed but won't start?
A simple test of the fuel pump is to stand by tank and listen as someone turns key to on. When first turned to on, your pump will activate for 2 or 3 seconds, pressurizing the fuel system, and then shut off if the engine computer doesn't get a cranking signal. Do you hear it come on? If not, then something's not turning your pump on. If you can hear it buzz on briefly, then maybe it's your filter. Another test: Spray a little starting fluid into your intake manifold (remove the big hose going into intake manifold) while someone tries starting it.If it doesn't fire and try to stay running, then it's probably an ignition problem. But if it does fire off, then you know it's a fuel problem-likely your pump or filter. good luck.

Nov 07, 2011 | 2000 GMC Sierra

1 Answer

1999 gmc sierra 2500 6 liter ran out of gas now won't start


If you are at or near the 100,000 mile mark then your fuel pump may have failed. If you remove the fuel filler cap and listen carefully at the filler neck while someone turns the ignition key to "run" [don't actually crank the engine] you should be able to hear the fuel pump buzz for about a second and a half as the key is turned On. If you don't hear the pump buzz then odds are your pump is dead. Your pump may have actually failed making it appear as though you ran out of fuel. Not to uncommon. Hope this helps and good luck!

Nov 01, 2011 | 1999 GMC Sierra

1 Answer

I have a 1996 GMC Sierra C1500. I'm totaly new to


A bad fuel pump will not keep the engine from turning over. I would first test your battery and make sure your connections are clean. If that check out I would check your starter and starter relay.

May 10, 2011 | 1996 GMC Sierra

2 Answers

1994 GMC Sierra 2500 won't start


definitely could be something smaller. Like a relay....even a filter.
Few things to try:
Just turn the key to on, not start and see if you listening to the fuel tank if you can hear the pump going. If not, its either the pump or the relay.
Most of these trucks have another switch that kicks in after the enigine is started and runs the pump so you may be able to spray starting fluid in it while cranking it and get it to start. Then the other switch may kick in and run it. that will let you know if its the relay or what. Let me know what you find. I just replaced a relay on a 93 and it was only $8.....worth a try. Also, there will be a fuel pump fuse, probably close to the relay, could be that!

Apr 04, 2009 | 1994 GMC Sierra

3 Answers

1996 GMC Sierra 1500 truck fuel problem


Have you check the injector relay or maybe a fuse for injectors.

Aug 26, 2008 | 1996 GMC Sierra

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