Q: won't start in damp weather

asked by on

like new starter, year old alternater and battery, 2 year old spark plugs and wires

My car has 100000 miles.
My car has an automatic transmission.

In my experience, the most common cause for a no start in damp weather conditions on these vehicles is a loss of spark. Most of the time, it will come down to a failed/cracked distributor cap, or a faulty ignition coil. There are several possible causes for a no start condition, but these are the two that, by far, are the most common that I see. If you feel that you need some help in identifying/repairing the problem, contact a certified mechanic, like the mobile mechanics available at YourMechanic.com.

Was this answer helpful?

This problem of hard or no start during damp weather is most commonly caused by ignition wires or engine running too lean. Try to spray the plug wires with water from a spray bottle to see if the wires start arching. If they do then replace the wires and use dielectric lube on the ends to seal in the high voltage.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. won't start in damp weather

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: Won't turn over. No crank.

If the alternator quite working, this will mean the battery is likely discharged, which would be a normal condition when an alternator fails. The starting system uses ten times the current of every other electrical system on the car. It...

Q: Water pump leaking at the gasket. Can I just replace the gasket?

If the water pump is more than 5 years old or has more than 60,000 miles, replacing the pump while you are addressing the leaky gasket will be less risky, more efficient, and cost-effective. Water pump bearings and seals do...

Q: Spark plug wires get heated and check light comes on

If your ignition spark plug cables are burning through then it is caused by not being in contact with the spark plugs and the spark plugs have high resistance. Replace the spark plugs and spark plug wires.

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...
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...