Skip the auto shop - Our mechanics make house calls

Q: Won't restart after its been driven across town.

asked by on

When the engine is cold it starts fine, but when its hot, i have power but it wont even crank over. No noise, nothing at all happens just lights and illumination and radio works too.
My car has a manual transmission.

A: These symptoms are evidence of "heat s...

These symptoms are evidence of "heat soak" electronic failure - most likely the starter solenoid. The solenoid has an electrical fault that heat exaggerates. After being parked for a short period of time - 10-15 minutes, the solenoid absorbs enough engine and exhaust heat to expand, opening up wiring that already has a fracture.

Since the electrical winding is now "open", the circuit isn't completed when the ignition switch is turned to "Start", so no "click" or cranking action. The solenoid cools over time, the connection in the winding is restored, and the solenoid works again until it gets hot. The other possibility would be a similar fault in the ignition switch. I would recommend having a professional technician, like one from YourMechanic, perform an inspection of the starting issue so that this can be corrected.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Van loses power, engine misfires - 1990 Volkswagen Vanagon

First, you should check out normal tune-up items (plugs, wires, rotor & cap, etc.), then check ground straps from the engine to the chassis. Next, check the fuel injection system, since the air flow meter or coolant temperature sensor (the...

Q: Cost of replacing a engine on a 2009 GTI volkswagen?

That is not an unreasonable price for a L4-2.0 L turbo engine. It would be much more elsewhere. Be sure the turbo charger is thoroughly inspected. If the engine failed due to an oil/lubrication issue, it would not be surprising...

Q: Brake pedal goes soft

I have seen this before. It is usually caused by an internally leaking master cylinder. The master cylinder is where the pressure for the entire brake system is developed. If it leaks internally, your pedal goes down, if you release...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.