Skip the auto shop - Our mechanics make house calls

Q: 1996gmc sonoma dieswhile driving. the shopchanged spark plugs and after i replaced 2 igniyion coils. they say to replace fuel pump

asked by on

my truck is dieing while im driving down the road. it would take 20 min. wait then it would start up. got a tune up, changed coils, not sure if the shop should of done more than a 499.00 tune up now they want change fuel pump. should ecm be checked as possible cause and wouldnt their diagonostic said if the fuel pump was bad?

My car has 178 miles.
My car has an automatic transmission.

Hi there. When you have a gradual issue that causes the engine to shut down after about 20 minutes, it is most likely caused by a restriction of fuel flow. This could be due to dirty fuel filters, fuel injectors or a fuel pump relay or the pump itself is wearing out. If it’s been diagnosed as a faulty fuel pump, they might be correct. I would doubt that the ECU is the issue, as this would most likely cause the vehicle to not start.

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!
  • Home
  • Questions
  • 1996gmc sonoma dieswhile driving. the shopchanged spark plugs and after i replaced 2 igniyion coils. they say to replace fuel pump

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: AC blowing out warm air again

If this happened right after the work was done then you either have a leak in the system that allowed the refrigerant to come out or there is an electrical issue. It is possible that this was overlooked if the...

Q: 1994 GMC Sonoma not getting power to fuel pump

The problem is somewhere in the fuel pump relay control circuit. There are five relay terminals: battery power, ignition power (controlled by the ECM), ground, output to the pump and connection to the fuel pump prime connector. What the prime...

Q: Suddenly want to over heat right away once started.

The easiest and cheapest thing to do is to replace the water pump and thermostat. These would be my first suspicions. Check the radiator to see if the fan is working properly by putting a piece of paper in front...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.