Skip the auto shop - Our mechanics make house calls

Q: Losing power but it's not in the engine more like bad connection

asked by on

Replaced Battery, starter, Alternator when starting car it runs for 30-45 seconds then light on dash go dim then it cuts off what can make it do that?
My car has an automatic transmission.

A: This vehicle may be having issues with the ...

This vehicle may be having issues with the wiring connections to one or more modules of the vehicle having fretting corrosion. I would recommend disconnecting the battery and going to the ECM, ICM, BCM and disconnecting the connectors. You should check for corrosion then apply dielectric lube to the pins and seals and reconnect each of them to see if the problem is corrected. If you need help having this diagnosed, a qualified professional from YourMechanic can come to your car’s location to diagnose the loss of power and address the cause of the problem.

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: Have a brake fluid leak from a part under master cylinder, where lines from m-cylinder connect to.

In time, brake fluid degrades and absorbs moisture. It will degrade rubber components of the brake system which include the[master cylinder, front and rear brake calipers. The leak you see is from the master cylinder reservoir seals. You can just...

Q: Blinkers only working part of the time

Hello, the first thing to check is the function of the hazard switch. The turn signals are powered and turned on and off through the hazard switch. If the hazard doesn't work, the first thing to check is the fuses....

Q: Lost of power

Hello. From what you describe it would appear that your vehicle may be experiencing more than one issue, possibly mechanical. Loss of power and fuel efficiency can be caused by many things. A few common causes are issues with the...

Related articles

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...
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...