Q: Car is cranking but not firing up to start

asked by on

Car has new plugs and optispark still won't turn over causing the battery to drain when trying to start and over heating wires where the ground is melting loud popping noise and sputtering

My car has 100000 miles.
My car has an automatic transmission.

The car not starting will first require a good strong battery to do diagnosis on this condition. I would first go through some preliminary checks. First, would be to check for spark at the spark plugs. If you have spark then I would check the fuel pressure to be above 40 psi. On this car, if you have spark and fuel, then you will need to see if you have a fuel injection signal to open the injectors.

If you have all three of these then you have an internal timing problem with the camshaft timing. If you have no injection signal then you would need to diagnose the computer to see why it is not signaling the injectors to open. I recommend having a thorough diagnostic check of your starting issue by an experienced mechanic to determine what is exactly causing the problem.

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 is cranking but not firing up to 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: Power window slow to go up

Hello, it sounds like you might have one of two possible causes for a window rising slowly. The electric motor could be getting weak, making it unable to lift the window. The other is that the window regulator is binding...

Q: Pass key fault light continually blinks

A few different parts can cause this problem. The ignition switch or key cylinder are most likely. Another possible cause is the security module. In any of these cases, hot wiring the car is not recommended as it can cause...

Q: Convertible top won't go down in a 1994 BMW 325i

Hi. There is an emergency release lever under the back seat of your car. It disengages the motor from the tonneau cover so you can put the top up manually if need be. If the level has gotten pulled, you...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...