Skip the auto shop - Our mechanics make house calls

Q: Coil misfiring and spark plugs bad.

asked by on

Car will not start after having sat for a long time. I had a mechanic diagnose the problem about six months ago and found out that a coil was misfiring and the spark plugs need replacing.

A: You may need to have the battery tested. If...

You may need to have the battery tested. If it sits for a long time the battery can drain from the computer running. If your car is going to sit for long periods of time I would recommend that you put a battery tender on it which will keep the battery charged.

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!

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: Car misfires after distributor, rotors, plugs, plug wires replacements. 1999 GMC Savana 3500

Although the person who serviced your vehicle the first time did not repair the issue, I think he might be correct about the fact that it could be an intake manifold gasket or a fuel pump issue. You may...

Q: misfire under load

Hello there, many different faults can cause your 2008 BMW 135i to have a misfire under load. If there is a multiple cylinder misfire, there may be one of a few different faults going on. The most common faults would...

Q: Front end problems and I am a basic car mechanic. I do the easy work. I worked at a Toyota Dealership for a few years and never encountered this problem.

Hi there. Sounds like that the CV shaft is failing on that side of the vehicle. The outer bearing in the CV shaft is what you are hearing for the clicking sound. The bearing is probably dry and needs replaced....

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.