Skip the auto shop - Our mechanics make house calls

Q: Will a poor cell battery make my car drive poorly?

asked by on

My 2002 Audi A6 Quattro 2.7 TT began driving erratic after getting it out of the shop for coolant fan module service. I had to get a jump before leaving the shop. Could it possibly be my battery?

A: Quite possibly. A low voltage battery can c...

Quite possibly. A low voltage battery can cause ignition misfires, although bad cells in batteries are not as common as they used to be. Most auto parts stored will check the battery for free or you can try checking the battery yourself. If this is not convenient for you, a certified professional from YourMechanic can come to your car’s location to inspect the rough running issue and follow through with repairs.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Hi got a Ford puma 1.7 2001 model went to put another battery on it and now there's no ignition lights it's completely dead would

It sounds to me that you have a short in the system and it blew out one of the main fuses, or you hooked the battery up backwards and blew a main fuse. Make sure you hooked up the positive...

Q: Reverse lights won't turn on when I put it in reverse. Dark blue wire has power, light green (reverse) wire has no power.

Hi there. Remove the fuse to the reverse lighting system. On the side that does not have power, use a digit ohm meter and check for resistance. The meter should read OL (out of limits). Now, turn on the ignition...

Q: Car lights do not work

You may have a low voltage condition in the system or the headlight dash lights are shorted within the cluster. I would suggest having the charging system checked first. Then I would have the system scanned for a cluster problem...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...