Skip the auto shop - Our mechanics make house calls

Q: Truck won't start -1997 GMC C1500

asked by on

Hey buddy I have a 1997 gmc 1500 5.7 vortex engine it cranks but won't turn over fuel pump tested 60 so ig it's good check my sparke plugs and they are good I Tryed turning it on manually with starters fluid and still wouldn't turn on so I'm really don't know much from there on but it was running fine and I was going like 75 on the highway and all of a sudden I heard a pop and my engine turned off had to tow it home and have yet to get it running

My car has 1974635 miles.
My car has an automatic transmission.

A: Hello. The description of the pop and then ...

Hello. The description of the pop and then your car dying makes me check to see if the timing is correct. Distributors will sometimes shear their roll pins and the gear on the end of the distributor will spin. Sometimes you can remove the distributor cap, crank the motor, and see if the rotor is turning. It still may when this occurs, but the gear could still have shifted. There are two options from here. You can remove the distributor and inspect the gear, or you can bring number one cylinder to top dead center and see if the rotor lines up to the number one plug wire on the distributor cap.

Aside from this, I would check for spark with a spark tester, check for injector pulse with a noid light, and check fuel pressure (which you have already done). These tests will determine what I do next, depending on what they reveal.

Another item I would suspect is the crankshaft sensor. This can have this sort of effect on your vehicle. If you need help diagnosing your vehicle, a certified technician from YourMechanic can inspect the starting issue and let you know what needs repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car will not crank.

Hello there, many faults will cause your 1997 Chevrolet Cavalier to have problems starting. You have done great in replacing the battery, starter, and solenoid as these are the most common issues. Your car will need diagnosis to determine what...

Q: AC tube broke and now truck is having problems.

You have already done all of the hard parts. Since you have diagnosed that the mass airflow sensor seems to be the problem, you will need to replace it. If water was introduced into the system from the air intake,...

Q: Fuel Gauge stays at full

Hello, This is a problem likely related to your fuel tank sending unit. The fuel tank sending unit is a small float type component (or sensor) inside your fuel tank that measures the level of the fuel inside the tank....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...