Skip the auto shop - Our mechanics make house calls

Q: Stalled while driving on highway now won't start turns over but won't start

asked by on

Driving to work going 60 on highway. Engine just stalled all lights worked no check anything lights came on before happened. Now won't start. Truck fires some but won't start

My car has 170000 miles.

Hello There, Stalling at high speeds as you describe can be related to many different things such as a random electrical failure or potentially a fuel supply issue. Since the truck does turn over and fire, this suggests you are still getting spark which would usually eliminate most of the electrical components leaving the fuel system as the most likely problem. This may be related to low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake to the computer which makes fuel adjustments), or potentially a faulty fuel pressure regulator or fuel pump. Fuel delivery problems will typically not allow the proper amount of fuel to be delivered to the cylinders which results in a lean fuel condition which can cause backfiring or simply cause the motor not to start as a result of fuel starvation. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

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
  • Home
  • Questions
  • Stalled while driving on highway now won't start turns over but won't start

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 shakes when accelerating

From what you've described, it sounds like you may have a bad bearing in the front end or an axle that's causing the problem when added weight is applied to the car. I'd suggest having the complete front end and...

Q: Truck not starting consistently

Hello. First, I am assuming your vehicle has an issue with the starter. Voltage drop testing should be performed between the starter and the battery. This will tell you if the is a loss of contact between the battery and...

Q: Idle high at start up then drops down slowly

Hi there. Typically when an engine starts up for the first time, the engine's RPM speed will be increased slightly to allow the motor and other operating systems to warm up to operating temperature sooner. In some cases, a vacuum...

Related articles

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.