What causes a GMC truck to turn over but not start?

If the engine starts up normally after doing that, it means that fuel pressure is bleeding off and the fuel pump needs to prime the lines before it can start. It can bleed off from one of two places. 1. Fuel pressure regulator has an internal leak, and fuel is bleeding off back to the tank though the return line. 2.

What should I do if my Chevy Silverado is not starting?

Fuel pump has been changed, fuel filter, Fuel pump relay, Fuel pump fuse, ignition coil, all have been changed or checked. Any ideas. It is getting power, just seems to not be getting any fuel. The possibilities are endless. Start with basics. Compression. Spark. Fuel. Air in and out. Check the compression with a compression gauge.

Where is the fuel pump sensor on a GMC Truck?

Its located on the drivers side of the throttle body. Its the top sensor. Try turning your key to the run position a few times (with out starting). Then try to start it. If it starts, sounds like what mine did. I replaced the fuel pump assembly and that fixed the problems.

What’s the problem with my GMC Sierra truck?

When I turn the key it cranks for about 1/4 second then nothing . None of the gauges or power locks and windows work . The battery is fine . Last night while driving all the gauges quit working and the a/c compressor kicked off , but the truck still ran fine .

What to do when your GMC Truck won’t start?

Try turning your key to the run position a few times (with out starting). Then try to start it. If it starts, sounds like what mine did. I replaced the fuel pump assembly and that fixed the problems. Very common problem.

How often does my GMC Truck turn over?

So far this has been the case pretty much every time i am starting the truck cold. I’ll try to start it and it will turn over for about 3-4 seconds (have tried a bit longer, still no go) then i’ll stop and try to start it again, and the second time it fires right up.

Why does my Silverado turn over but not start?

It will turn over but die as soon as it starts. The red battery light came on because the truck died and the key was still on. That is normal and I doubt you have any charging problems. With it starting and dying out, you have a bigger problem going on. There is probably trouble codes set in the computer which will help out with diagnosis.

Why does my car not start when I start it?

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 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 Chevy Blazer not start?

I have a,1999 blazer I put a new battery in. And now it the three or four times to start after I get it started in don’t have a problem starting it all day New fuel pump, pressure is good. New programed ecm, new delco spider. , still injectors are not emitting fuel. Starter fluid will fire the engine but won’t stay running.

Can a 93 K5 Blazer 5.7 start when cold?

My 93 k5 blazer 5.7 will start and run fine when the engine is cold. After it warms up it dies. Try to start it again and it sounds like it tries to start then the starter will bog and sometimes it turns over fine but just won’t start until it cools down.

What causes a Chevy Blazer to shut off while driving?

Sudendly looses power and shuts off while driving… Coolant or antifreeze Oil Fuel pump Fuel filter Battery Fuses For two week’s prior to incident when i shut off the truck i could hear a boiling like sound coming from the coolant resivoir.

Why does my truck not start after sitting for a long time?

This can happen when the check valve in the fuel pump assembly leaks pressure back into the fuel tank. The longer the truck sits the harder it is to start. Try this, turn the key on for 2 seconds then off, do this two more times then try and start it.

Why does my 2001 S10 have a hard starting problem?

My 2001 S10 has a hard starting problem if the truck sits between 1 to 4 hours. It starts fine if left over night. Has 46,000 miles. Cranks for about ten seconds before it starts. some part of your fuel injector is leaking into the manifold. Have fuel pressure tested, have a feeling it will shoot up to the desired 60 psi then fall back now quickly.

What to do if your truck won’t start?

To be able to get it to start the truck has to be primed with the key and then put the gas pedal to the floor while cranking. I have recently replaced the fuel filter, air filter, and fuel pressure regulator in attempt to fix this problem.

What causes a Chevy pickup to hard start?

If after you have circled the key a few time the engine starts normally then you now know for sure you have a fuel pressure leak down problem causing your hard start. If this video was helpful please help support my youtube channel by subscribing here: https://www.youtube.com/channel/UChCX…

Why does my fuel pump not start after sitting?

When the key is turned on the fuel pump only gets 2 seconds of power, so if the line pressure is at zero there isn’t enough run time to pressurize the fuel system. Cycling the key a few times forces the pump to run for 6 seconds instead of just 2 and this will pressurize the system and allow for a quick start

What causes engine crank time to be extended?

Another common reason for extended crank time for engines is a vacuum leak. Engine vacuum must be a sealed system which the mass air flow and map sensors depend on to send feedback information to the main computer which in turn sets the stage for the engine starting sequence.

What should I do if my engine won’t start?

You should hear the pump start in the fuel tank for a brief period and then stop, cycle the key “OFF” then “ON” again without cranking the engine over while listening to the fuel pump, and do the cycle one more time to make three subsequent cycles.

Why does it take so long to start a 300K engine?

Sure why not. On high mileage engines (200k to 300k) the pistons ring can wear causing low compression which increases crank time and causes hard starting. This is because the compression ratio is low and it takes time for the engine to gain enough speed cranking by the starter to ignite the fuel air mixture.

Is there a Service StabiliTrak warning for GMC?

With GMC corporate involvement, the official position is that the “SERVICE STABILITRAK” warning is within “normal operational” parameters since GMC cannot duplicate the occurrence.

Can a bad torque converter cause a transmission to slip?

A bad torque converter can cause a similar feeling as slipping gears. If you notice slipping when you are shifting gears, it may not always require expensive maintenance. BlueDevil Transmission Sealer is designed to restore small cracks and leaks in your transmission with almost no effort from you.

What’s the most common reason truck drivers quit?

You start thinking about your kids, wife, family, and everything else that is a part of your life. Being away from loved ones is a killer, it is by far one of the most common reasons truck drivers quit. You won’t be home for birthdays, holidays, graduations, sporting events, anniversaries, and family emergencies.

Why do truck drivers never see the world?

You won’t have time to see the world because you will be working, not vacationing. For the most part you will be trying to avoid big cities, the congested streets, and the traffic that goes along with them. The most you will see of any city is the warehouse districts, everything else will be off limits to you.

Is there anything to see at a truck stop?

The only nature you will get close to is what you catch a glimpse of while parked at a truck stop or rest area. Trust me, there is not but nature to see at truck stops. It’s mostly piss bottles and lot lizards. You won’t have time to see the world because you will be working, not vacationing.

Why does my Toyota Prius not start up?

If you get no lights and your battery is working, the ignition switch could be to blame. If you get dash lights, then turn the key to start to see if the lights go out on the dash. If the lights go out, your ignition switch is okay. Starter Connection – Corrosion on the starter can keep the car from starting.

What to do if your Toyota won’t start?

Battery – If the connections on your battery become corroded, there is no longer a connection to the rest of the car. This can keep you from starting. Clean the posts and try to start the car. Additionally, the battery may be dead. Take a battery tester and test the cranking amps to see if they are weak.

Why does my 2000 Chevy Silverado not start?

Question: My 2000 Chevy Silverado that will not start unless i pour gas in the throttle body. It has been sitting for about 8 months and prior to that there was no problems at all. I have good fuel pressure with no bleed down. Answer: Does it start after pouring gas in throttle and keep running fine? What is the fuel pressure?

Why does my car not start when I Turn on the gas?

With the key in the on position the orange information center thing will flash and go through every thing it says. When I turn on I can’t hear the fuel pump. I’m not sure if it’s just the fuel pump or if there is a bigger problem. Any input is much appreciated. Did you run out of gas? Spray brake clean into the intake and see if it starts.

What to do when your GMC Sierra stops running?

If you have fuel pressure after the above tests pull a spark plug and check for spark. If you don’t have spark check the cam position sensor in the distributor. If you have spark with no pressure it is the pump.

Why did my truck engine shut off going down the road?

That was because the top started to rust out, not from failure. When it went in my 98, I was out hunting and it died driving down the road. Replacing it on the truck wasn’t bad, I didn’t even attempt it on the Yukon. Try crawling under the truck and whack the fuel tank with a rubber mallet while someone tries to start it. Click to expand…

What should I do if my long crank wont start?

Just a recap of what you should do first to determine if your long crank before starting is fuel related or not. First, before you try cranking the engine over, turn the ignition key to the run position then back off without cranking the starter.

What should I do before cranking the engine over?

First, before you try cranking the engine over, turn the ignition key to the run position then back off without cranking the starter. What this will do is run the fuel pump and in most cases, you will be able to hear the fuel pump running. Do this 3 to 4 times before you try starting it.

What causes a GMC truck to turn over but not start?