Q: Car will not start after replacing battery and alternator

asked by on January 14, 2017

Just replaced battery and alternator. When alternator was replaced the support bracket was not put back on... the next day I turned the car off and it wouldn't start. It started but onlu stayed on a few seconds and died.. after the third time it wouldn't even turn over.. does the missing support bracket have anything to do with it?

My car has 117000 miles.
My car has an automatic transmission.

Battery will not hold a charge Inspection $94.99 - $114.99 Get a Quote

The support bracket is a structural element and therefore must be installed to maintain proper alignment of the alternator. However, as far as its temporary omission being a possible cause of the no start, it has nothing to do with the problem. If you started with a fully charged, new battery and you are now presently at the point where the battery is so discharged that the vehicle starter motor won’t function, that could signify a failure in the charging circuit. I would recommend that you request a charging system diagnostic and the responding mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Noise from front driver's side.
Without hearing the noise it will be hard to make an accurate diagnosis of the cause but there are several things that can be done to eliminate or highlight possible causes. First is determining the type of noise and conditions...
Car won't shift gears
Two scenarios: the leak developed as you were driving. It only takes the loss of 2 quarts before the transmission starts to act up. There is about 13 quarts of fluid though. The location of the leak needs to be...
Car is easy to put in gear, but won't move. It can be pushed so no wheel or break lockage. Transmission fluid is very dark
Hi there, thanks for writing in. Odds are high that the transmission has failed. "Dark" fluid indicated a lot of clutch pack material has worn. Also, this can cause the pump to fail inside the transmission. Flushing the fluid at...
Panic alarm went off and now car won't start
Hello. If you hit the panic alarm the vehicle should start once you turn it off and lock and unlock the vehicle with the key fob. If the battery in the electronic key is low then you may need to...
The Check Battery Light will come on and the car will lose power. Sometimes the power steering will stop working as well.
Hi there, thanks for writing in. In several instances, when the Check Battery Light comes on before the engine died, then it's probably the alternator (https://www.yourmechanic.com/services/alternator-replacement). If your engine died before the Battery Light illuminated, then you may have had...
How do I tell the difference between a break line popping and a master cylinder going bad while my foot was on the brake?
You may have an internal piston seal leaking inside the master cylinder or a leak somewhere in the brake system. You would know the difference by looking in the master cylinder to see if the fluid is real low or...
My car stutters after driving it for a few minutes - 2002 Toyota
This may also be caused by what is called the fuel pressure regulator. This is a unit that helps to maintain the fuel pressure at the proper level. When this is not working properly, the fuel pump may be pumping...
My car makes a loud sound?
Hi there. Seems unusual the noise is only there over 50mph. The noise may be coming from a failing wheel bearing (https://www.yourmechanic.com/services/wheel-bearings-replacement) and this may account for the car shaking, as well. It could be, a separated tire that you...
New front pads & rotors (2mths) and hear a grinding noise when coming to a slow gradual stop. What could be causing this?
Hello, thank you for writing in. The last technicians that worked on your vehicle are not wrong. There are certain types of brake pads that will make a squealing noise when the brakes are applied. These are typically made from...

Related articles

A Buyer’s Guide to the 2012 Dodge Ram
While While Chrysler has decided to give Ram its very own division, it seems impossible not to think of the Ram 1500 as a Dodge. After all, you’ll still buy your 2012 Ram at a Dodge dealer, and it remains...
The Best Used Cars to Buy for Dog Owners
Dog Dog owners are a special breed of drivers. When they shop for a used car they have a list of requirements that can be quite different from other drivers, which tends to make the process a bit of a...
How to Charge a Car Battery
In In an age where it seems every moment is tied to a schedule, the last thing you need is to find yourself stranded when your car doesn't crank due to a dead battery. It doesn't matter whether you're at...