Skip the auto shop - Our mechanics make house calls

Q: My car won't start what can it be

asked by on

I was wondering if you guys have any idea we have changed the alternator the gas pump spark plugs and the start works fine but we have not gotten it to work.

My car has 98000 miles.
My car has an automatic transmission.

A car needs fuel, air, and spark to start, if there is any problem with one of those three then the car may not start, or will not run correctly.

The first thing I would check would be to see if the vehicle has spark. If you find you do not have spark, I would check on the ignition coil, crank sensor, and cam sensor. It is not uncommon for ignition coils and cam sensor to fail on these vehicles, especially as they hit higher mileage numbers. If all of those check out then the problem may not be with the ignition system.

I would then check to make sure that your fuel pump is working correctly and getting power. If the fuel pump relay fails, or there is a problem with the computer, the fuel pump may not get power, even if it is functioning properly. I would also check to see if there are any engine codes that may give hints as to what the source of the problem may be.

Finally I would recommend having a certified mechanic, such as one from YourMechanic, come out and diagnose why your car is not starting.

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: Hello, I just got a 2001 Montaro Sport and I went to get in tonight and it started squealing. What cold it be?

The noise could be the serpentine belt slipping due to age or the tensioner not holding the belt tight on the pulleys. Also an idler pulley could have a failed bearing causing the noise. Try removing the serpentine belt and...

Q: car overheated.fixed cylinderhead gasket replaced sparks n wires cant get it running

Hello, thank you for writing in. When the engine overheats to a certain point, there is damage done to the engine that is irreversible. The biggest concern is that inside of the engine, the pistons can heat up to the...

Q: Automatic gear box 2007 VW Touareg 3.0 tdi v6

Hi there - I would start by having the fluid level in the transmission checked. A hiccup on a curve, when the fluid is forced away from the hydraulic pump, is an indicator of low fluid - which would cause...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.