Skip the auto shop - Our mechanics make house calls

Q: Battery problems with jeep

asked by on

A few weeks ago, my Check Engine light came on. Then a week or two later, both of my low beam headlights went out, though the high beams and all of my rear lights still worked. I had my battery checked, and it was still good, though a little low. The shop charged it back up for me. As I was leaving work the other night, I noticed that after I turned on the high beams, my dashboard lights started to dim and the battery volt gauge on the dashboard dropped below 9 volts. My jeeped began making a clunky guzzling noise and started to slow down before stalling.

A: It sounds like you are experiencing an elec...

It sounds like you are experiencing an electrical charging system issue. The alternator is not charging the battery properly. A spike in voltage will blow out your headlamps, and a drop in voltage will cause them to dim. I recommend having a qualified technician, such as one from YourMechanic, run a charging system test to see what the alternator is putting out. I suspect it to be faulty and the cause of the issues you are having.

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: High fuel consumption

The Space Gear used both 4 cylinder (2.4L) and 6 cylinder (3.0L) engines and there was also an AWD (All Wheel Drive) version, not to mention diesel versions. Consequently, the curb weight of the various versions of the vehicle ranged...

Q: My son has a BMW. It will be driving fine and then all of a sudden the gas pedal will be pushed down and it will not move.

Hi there. When the Check Engine Light is on, retrieve the codes as this helps guide the diagnostic process. It does sound like you either have a water intrusion problem into a connector or electrical component or there is a...

Q: White plugs due to lean conditions in cumbustion chamber

You should have your fuel injectors and combustion chamber cleaned. The valves may have carbon built up on them and will cause lean conditions. Also dirty clogged injectors can cause lean conditions as well. Lastly, I recommend checking the fuel...

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 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...
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...