What causes a GMC truck to not start?

What causes a GMC truck to not start?

Verify spark, verify fuel pressure and volume with a gage and air. Very helpful to know what engine you got but i can guess at it, must be the 4.3. Since you mentioned distributor. IF you have good spark at the plug it must be a fuel problem. Can you ever hear the in tank pump run?

Why does my GM 4.3L engine not start?

No Start Condition Basics There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

How to troubleshoot fuel pump in GM 4.3L?

Once the intake air duct is back on the throttle body, have your assistant, inside the vehicle, crank the engine. 1.) The engine will start momentarily and after a few seconds will die. 2.) The engine will only crank but not start at all. 3.) The engine will start and stay running. OK, let’s find out what your results mean:

What kind of engine won’t start unless you spray starter fluid?

Cars A-Z Engine will crank but won’t start unless you spray starter fluid in it Maintenance/Repairs dodge, ram1500 Ramprobs October 11, 2016, 7:27pm #1 Okay so I have a 2004 Dodge Ram Hemi, the truck was running fine all this weekend and was fine this morning.

What does it mean when a Chevy truck won’t start?

It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug After spraying a small amount of starting fluid into the air intake tube, the engine starts for just a moment, then dies Three or four years ago the truck had the Reduced Engine Power warning problem.

Why does my GMC Sierra engine not start?

It seems this can also be caused by faulty APP (Accelerator Pedal Position) sensor. First I would check the INJ1 and INJ2 fuses in the under the hood fuse box.

Why does the engine not start when spraying fluid?

You stated it would run briefly when spraying fluid in the intake. The P1516 code may be a clue. P1516 is a problem with the Throttle Actuator Control (TAC) Module which can (according to some of my reading) cause the PCM to go to reduce power (stop firing the injectors) from lack of signal.

Why does my Ford F150 not start up?

STARTING PROBLEM I have a 2000 ford f150 5.4L the truck cranks but will not start some times. if i spray starter fliud into the booster in will start up. but other times the truck will start then just idle off. There is good fuel psi, just changed the fuel pump relay. the problem stop for a while then started again.

What causes a car to not start or turn over?

With the major systems checked out, there are a number of other things you can check to see why your car won’t start. Loose Starter: Loose starter bolts will cause it to dance around and wiggle, failing to turn the engine over.

Why does my car not start without starting fluid?

This was the crank position sensor. Now the car will not start without starting fluid. When starting fluid is used, the car will start and then run fine. Once you shut it off then try to start it, same thing. The fuel pump turns on when key is in on position. Holding pedal down to try and clear flood does nothing.

Can a car starter go bad over time?

A starter can go bad slowly over time and there are some things that can indicate when it is ready to go. For instance, you may notice that it seems like the engine starts slower than normal in the morning or you may be able to hear the starter turning more slowly than usual when you turn the key.

What does it mean when your GMC Sierra won’t start?

The first and most common is when it won’t turn over. This just means that the engine doesn’t move when you turn the key. The second way that your Sierra won’t start is when the engine turns when you engage the starter, but it won’t fire and run on its own.

Why does my car not start when I try to start it?

But if the battery doesn’t have enough juice to start the engine or repeatedly needs a jump start, the problem may originate elsewhere, and jumper cables or even a new battery won’t solve the problem. Here are eight possible reasons your car won’t start.

How to troubleshoot a no start GM 4.3L pick up?

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I’ll show you the basics of testing such a problem.

Why does my 1999 Ford E150 not start?

1999 Ford E150 with 150K on it. This van has generally been a champ, but it’s recently developed a habit of not starting… sometimes. I replaced the battery a couple months ago, and the starter sounds fine, it always cranks enthusiastically, but the engine won’t start. It’s as though it’s out of gas, but there’s plenty of gas.