Q: Poor starting when cold

asked by on

Engine poor starting when cold,struggles to pick up and sounds like it's chugging,but when warm starts ok. Have put on new leads and plugs but all is the same

My car has 88000 miles.
My car has a manual transmission.

When the car is cold, it relies heavily on the engine coolant temperature sensor. If the coolant level is low, the coolant temperature sensor can send false information to the computer, causing a hard start or cold start poor running condition. If you have access to a scanner, you may try hooking this up to watch the coolant temperature. For example if the coolant temperature is 30 degrees, but the coolant temperature sensor reads that it is 100 degrees, this will cause the computer to not activate the proper enrichment to the engine at the right time upon start up. This is a common issue when it comes to vehicles starting in colder temperatures. For more information, I have linked an article which discuses starting a car in cold weather.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Poor starting when cold

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 misfires then goes to limp mode.

When the vehicle goes into limp mode when the engine misfires, the computer is shutting down the electronics to the transmission to prevent damage to the catalytic converter as the fuel condition is either too lean or too rich. Check...

Q: Q: my car turns over but will not start.

If no power is supplied to the coil packs this would suggest that the ECU is bad as it is responsible for supplying the power to the coil packs. Coils typically have 12V+ supplied to them from grounding from the...

Q: Wire under fusebox burned fuse melted 2003 Ford Focus

Hello - most often, wiring damage is caused by shorts caused when wiring insulation is damaged and cut or worn away. The big charging cable from the alternator to the battery (or the starter cable) has a huge capacity for...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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.