I have read all the literature, searched all the issues, and I HAVE A STUMPER:

My engine cranks just fine, no start

Replaced fuel pump
Replaced Crankshaft Position Sensor
Replaced Relay Control Module

NO Check Engine Light

Will crank for days but will not catch. 62,000 miles

 

You either don't have fuel or don't have spark, possibly both.

Pull a spark plug wire and use a phillips head screwdriver to short it out to the block while cranking the engine over. If there's no sparc there's your problem, start tracing it back.

If you have spark then it's probably a fuel issue.

It could also possibly be a fried computer.

There's way too much missing information to form a very good opinion.

 

An engine needs three things to run............air, fuel and spark. You seem to have covered the fuel system so move on to see if there's spark and then check for air(MAF, MAP sensor).

 

You guys are great, I really appreciate the help.

I can get it to start maybe 1 out of 6 tries, but just barely. Its possible but not consistent by any stretch of the imagination.

 

One other quick trick i used as a mechanic is to get a spray can of starter fluid and spray a little down the intake. If the engine fires it's a fuel problem. If not then you definitely have a spark problem. Good Luck.

 

Just like Moparrbust says, you need air, fuel and spark.

You've got air, you've got spark, and you've got SOME gas if it'll chug once or twice. I know you replaced the fuel pump, so check the fuel filter.

Good luck.

 

a quick fuel pressure gauge on the shrader valve on the end of the fuel rail would be a good place to start

 

I don't think you'd wanna do this on a Hi-Compression engine ! I would go with the gauge on the fuel rail before shooting ether down the spout !

 

dumb question time.... you replaced all the spark plugs?

 

Make Sure The Camshaft Sensor Is Not Bad It Can No Start With No Check Engine Light

Use The Free Service Manual It Has Great Test Procedures In It And Free On Top Of That

Good Luck

 

Spark Plugs don't call to be replaced until 100,000

 

that doesn't mean they don't need to be. They could have been damaged or faulty, it is an easy thing to check, I would make sure they are firing correctly....

 

Actually the plugs are due at 5 years or 100,000 miles.

You mentioned the changing the fuel pump but not the fuel filter. Have you changed the fuel filter? It is due at 60,000 miles, or 4 years.

 

What made you change out three components so quickly?
Was this a problem that started suddenly or did it slowly get harder to start?
I always start on the simple things to check and then go to the more difficult items.
You are not at the point of running out of gas I assume when the pump is sucking air as well as gas. Spark plugs that are wet with gas normally rules out fuel problems. Can you hear the new fuel pump? Is a spark present?
Using a multimeter that can measure low ohms values is vital to checking all the sensors and is well worth the investment.

 

I had the problem sporadically a few months back, and the dealer diagnosed it as a bad fuel pump, and they replaced it.

About a month later it got worse to the point of not starting at all, and I started doing the research into the "mystery no start issue" and the crankshaft position sensor issue.

I bought the relay and the sensor thinking one or the other would help, but neither did anything, car still doesn't start.

 

Sounds very similar to my situation, and I'm 99% sure its the CAMshaft sensor. Not the CRANKshaft. I am replacing mine today and will let you know if it fixes it. I did have a code for the camshaft sensor though and mine mainly does it after its hot. But was getting worse quick.

 

Turns out the fuel pump the dealer installed went bad AGAIN

AND

CAMshaft sensor was bad

Double trouble

Replaced under warranty

 

Glad you got it figured out... I'm on day two with my new camshaft sensor and no problem starting. Yay!

 

Glad it worked out for you. Usually a crankshaft sensor will allow the car to turn over, but not drive for very long.

A camshaft sensor is more consistent with no start.

Also both can go bad without a CEL or just a phantom CEL.

Also, the car will start with a lot of the sensors being bad, the MAF is one of them. It'll run like crap, but it'll crank over.

 

I admit I never read the manual front to back but as far as it saying spark plugs 100,000 miles or 5 years sounds odd to me.
Miles I agree but how does the age of a spark plug affect it's performance ??
And I read all these threads about the "Crankshaft Sensor"
What is it really for and why do we have these on our cars.
Until my Crossfire I had never even heard of this part before.
Are these on other cars ??

I'm a curious person and I love this forum for all the things I have learned here
Valk