Q: Car cranking problem being a bad fuse box?

asked by on

Our 2010 Buick Enclave has an issue that started with the starting motor cranking slower and slower. The battery was OEM so I went ahead and put a new one in to take that out of the troubleshooting. I checked the DC voltage for drops, couldn't figure it out. So I made an appointment to take it to the dealer. When I tried to start it to take it to the dealer, the car wouldn't start. With the key turned to Aux, all of the lights and indications light up, but no crank. And while turning the key to start it blanks all dash lights until the key is placed back in Aux. Dash indications show the check engine light on and blinking really fast. Cheap OBDII reader shows fault 0100. Tow it to the dealer and they are saying it's a bad fuse box. It seems to me that a fuse panel is go/no go for power, not a drop in power over time. I fear that they are going to replace the fuse box and then realize the cranking motor is bad. Have you heard of a fuse box going bad?

My car has 95981 miles.
My car has an automatic transmission.

Fuse boxes can and do go bad every once in a while. While it is rather rare, it is not unheard of. If there has been any sort of damage in the area, these are more likely to fail. The starter is a more likely cause for a "no-start" situation like this. It should have been one of the first components they checked. While the fuse box can be intermittent, these problems are usually due to a bad connection or terminal. In this case, the need for a new box would depend on the details of the damage. Make sure the grounds for the battery, starter, and fuse box are all clean, tight, and in good condition. As far as the code that was set, was there a letter in front of the number? A P0100 is usually for a mass air flow sensor. While a U0100 is for a connection error with the engine control module.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car cranking problem being a bad fuse box?

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: Car accelerates very slow when it hits 20 mph and neutral shift on dash starts to blink.

Either the transmission has thrust bearings or bushings that are worn causing the internal parts to go out of balance or there is an issue with the fluid is low causing the gears to slip. If the fluid is full...

Q: Q: No start

Hello. A no start condition can be caused by many things. If you have verified that spark and fuel pressure are good then the next thing I would look at is the engine management system. If the engine is getting...

Q: Engine light on. I have code p0013

Hi there. It is possible that the wrong oil was used or this can occur if a poor quality oil filter was installed. Most of the time though on this vehicle it is caused by a failure in one of...

Related articles

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.