Skip the auto shop - Our mechanics make house calls

Q: There's no spark when the car is in drive

asked by on

I needs y'alls help I have a misfire on cylinder 7, the problem is that when the car is in drive there's no spark but in P/R/N/ it works fine ... Only in drive there's no spark and while driving sometimes the check engine light flashes and the traction control /stabilatrack/ and another light turn on for a bit then turn off.......I swap the spark plug and wire with cylinder 1 and the problem is still in cylinder 7 ....I just can't find out why only on drive it stops sparking ..... Please help

My car has 124000 miles.
My car has an automatic transmission.

A: Hello. This sounds like a computer issue. I...

Hello. This sounds like a computer issue. It sounds like there is either a short in the computer that is causing this or you are losing ground or connection at that cylinder. From my experience with Camaro's the computer is usually at fault. It would need to be tested with an o-scope to tell which is the culprit. If you need help with this, consider YourMechanic, as a certified technician can diagnose your electrical issue firsthand and help you fix it accordingly.

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: Rear bank of cylinders has no spark.

Hello. A no spark condition can be caused by a wide variety of issues. If the issues appear to be affecting an entire bank, that is an entire side of the engine, then it may be possible that there is...

Q: My Tach doesn't read correctly sometimes. Power locks and wiper blades don't work all the time.

The problem with your tach sounds like it may be within the mechanical workings of the tachometer itself. If the gears that moves the needle around start to wear, you may have a bouncing needle or it can stop in...

Q: EPC Check Light is on followed by an engine fault

The EPC light refers to the Engine Power Control indicating a potential engine malfunction which is a general warning that could mean many different things such as the engine speed sensor, mass airflow sensor, or other issues related to throttle...

Related articles

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 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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...