Skip the auto shop - Our mechanics make house calls

Q: Car has problem starting

asked by on

Yesterday my car had a problem starting. I suspected the battery. I used my CTEX charger overnight (12 hours) and though the car started first time this morning it took 4 seconds to start rather than the normal 1 second. I drove to work but its only 3 or 4 miles and through traffic so the average speed is not high. I parked the car then tried to restart the engiine. I tried 3 or 4 times and it wouldn't start (I leave the ignition turned for 4 seconds max).

When driving to work today I noticed the EPC and EMS warning lights were on. Note the EMS light has been on for 3 years and been through several MOTS and services and I was told its not a problem to worry about (perhaps thats just what I wanted to hear). The EPC light being on when driving is new though.

My car has 78000 miles.
My car has a manual transmission.

A: If you suspect battery then I guess you’re ...

If you suspect battery then I guess you’re saying that the car has problems cranking; in that the starter motor seems to be turning more slowly when you turn the key. A car made in 2002 should probably be on it’s second battery by now and ready for it’s third, so it is not unlikely that you are correct. First you need to have the battery load tested. Then, once you are sure you have a good battery in the car, weather it is the current one or a replacement, you need to load test the charging system. Then you can read and cancel the codes that are turning on your warning lights. If the system voltage has dropped while you were operating the car, it’s not unusual to present a number of false codes. so you need to clear them and start over.Then, if the warning lights return, you can read the codes and act on them. The EPC light indicates a problem in the engines throttle control system. It could be a fault in the pedal position sensor or one of the tracks in the throttle actuator. The EMS stands for engine management system and without more information I can only say it can be any number of faults. Either light, if it comes back,should not be ignored. To solve the battery or the warning light issues, you can contact Your Mechanic, and they can send a technician to your home or office to check out your car and advise you on what you need to do next.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Headlight indicator light not displaying

The noise may be from the fan, or the AC compressor. The battery going dead would need to be checked for a draw, or short to the battery; the cables would also need to be checked. The headlight high beam...

Q: Steering wheel resistance at 12 o'clock position

Hi there, thank you for writing about your 2013 Audi S5. Your vehicle has electrically-assisted steering, so your car's power steering module may be causing the steering problems. Audi has a software update for the power steering module - Ref:...

Q: air sound on acceleration

Hi there If by HP increase you're talking about adding multiple stage NOS kit, then your OEM OBD-II codes will be irrelevant; as the software in the ECU is not factored in for aftermarket upgrades. You'll need to contact the...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...