Skip the auto shop - Our mechanics make house calls

Q: What should of been a simple fix, has turned out to be a much more and in depth diagnosis of my 2000 Chevy Impala

asked by on

I have a 2000 Chevy Impala for 5 years and this is the first time that I've had issues with the car. I've had 3 different mechanics tell me whats wrong with my car. My ignition switch, the starter, the battery, the alternator, and the fuel pump. I've lost hope in rying to find someone to get my car up and ready for fear that I will get a fourth opinion that' different. I have been doing research on my own and I feel it could be the crankshaft sensor. I'm not sure but I wanted to know what the difference between the crankshaft and the camshaft is and what would the symptoms look like? Im running out of options so opinion is what considering. Thank you. By replacing all of those things mentioned above it has not enhanced the car cars performance. In fact the car doesn't always start. It drives rough and there's no speed and I need that speed. No freeway either.
My car has an automatic transmission.

A: Your engine is known to have problems with ...

Your engine is known to have problems with ignition control modules and crankshaft position sensors. To correctly diagnose these components a lab scope is needed to check to make sure the crankshaft position sensor and camshaft position sensors are sending the right information to the ignition control module.

In addition to these problems there is a possibility that the catalytic converter may be clogged. Based on your description of what is happening, these are the places that I would start looking at next. Good luck.

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: Temperature Gauge

The overheating and the no cabin heat could be related but they could also just be coincidental and thus due to unrelated causes. If the problems are related, you can get intermittent or inadequate cabin heat if there are air...

Q: drivers door won't close inside mechanism messed up

Hi there. From the description you have provided, it would appear there are a combination of problems. First a faulty door latch. Second a faulty door lock actuator. Proper diagnoses should be performed to avoid unnecessary repairs. I recommend having...

Q: My rotors keep going bad.

You're correct. You shouldn't be going through so many brakes within a year. There is definitely an issue here. I believe you may just want to do a brake system flush. This will eliminate the first thing I thought which...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...