Q: Q: Car won,t start.

asked by on

I have replaced the battery and spark plugs on my 94 Corolla. I've sprayed starter fluid in the intake. I checked all the fuses, still no start. I don't know if it's the timing or not. The car had overheated while being driven, after being parked it will not start.

My car has 143527 miles.
My car has an automatic transmission.

You mention the car being "parked". If, by chance, the car has sat unused for "months", the gasoline in the tank is usually bad and that alone will cause a no start condition. In a scenario such as that, the tank would have to be thoroughly drained and there might be additional work required on the fuel system, the exact work just simply dependent on how long the car has been used. Gasoline has a relatively limited shelf life. If the car has overheated, that raises additional concerns such as the integrity of the cylinder head gasket. You might want to check cylinder compression just to verify that there is sufficient compression. Broadly, in a no start scenario, if the starter motor is turning the engine over rapidly, at sufficient RPM, but the engine does not catch and run, that means that there is an ignition, fuel, air induction, or mechanical fault in the engine that will have to be repaired. If compression is found to be within factory specifications, and there is fuel being delivered by the injectors (not just "to" the injectors) and the ignition system is working, that means that the air fuel ratio of the mixture delivered to the cylinders is so far off the mixture won’t ignite. Such could be due to an air induction fault like a stuck idle air control valve or, considering fuel, could be due to a failed temperature sensor that must be working properly to signal the PCM to enrich the mixture on cold start. Regardless of the underlying cause, if you request a no start diagnostic the responding certified mechanic will get the problem diagnosed and repaired for you. Please let us know if you have further concerns or questions as we are always here to help you.

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 won,t 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: Q: Car makes loud noises

There can be a variety of reasons behind what is causing your Toyota Corolla to make loud noises while driving. Unfortunately without more information, it can be difficult to point you in the right direction. This is when I would...

Q: Q: Cars cranking but not firing

This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the...

Q: Clutch line not bleeding

The clutch and brakes don't use the same master cylinder. They both use brake fluid, but that is the only things they have in common as far as parts go. The clutch will have its own master cylinder, line and...

Related articles

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...
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.