Q: Q: Car does not start

asked by on

98 Honda accord ex shut off will not start check engine light never come on. I had a fuel pump , module andmain relay switch put on still won't start

My car has 14000 miles.
My car has an automatic transmission.

Hi There, Depending on whether or not the vehicle will turn over will determine what the next step should be. If the engine does not turn over, I would recommend checking all connections related to the battery and check to be sure the starter relay is producing power to the starter. If the engine does turn over, this may be related to a spark or fuel supply problem. Things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition module are all components that help to create spark and control ignition timing which may cause the motor to not produce spark or the correct timing needed to ignite the fuel in the motor. In the case of a fuel delivery problem, this may be related to low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake to the computer which makes fuel adjustments), or potentially a faulty fuel pressure regulator or fuel pump. Fuel delivery problems will typically not allow the proper amount of fuel to be delivered to the cylinders which results in a lean fuel condition which can cause backfiring or simply cause the motor not to start as a result of fuel starvation. In some cases too much fuel may be supplied to the motor causing too much fuel to be introduced to the motor faster than what it can burn it. This results in the motor being flooded with too much fuel also causing it not to run properly. Any of the above possibilities can create an imbalance in the proper air/fuel ratio as well which will cause the motor to run very rough or not at all. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

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. Q: Car does not start

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: heating/cooling and fan

You likely have a low coolant problem. When your coolant level isn't correct your air won't blow at the right temperature. However, it's also possible that your heater core isn't working properly. It may just be clogged and need to...

Q: Fuel injecter

Hi Danny. A professional mechanic would start by downloading all OBD-II trouble codes, as this would lead them to a bank (or side of the motor) where the faulty injector is faulty. They would then inspect each one till they...

Q: I unknowingly drove my car for the last 5,000 miles without an air filter, what potential damage has been done?

I do believe that no serious damage would have occurred. The air filter is made to prevent any leaves or other debris from entering the engine. However, due to the design of many newer intake systems, the debris would likely...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.