No Start but crank, not the fuel pump, or ignition coil

JEREMY SILVER

MEMBER
2009 CHRYSLER PT CRUISER
2.4L
4 CYL
AUTOMATIC
40,000 MILES

It cranks with no start, I took it into a shop and found out that there was gas in the oil. Also, that cylinder two and four had little to zero compression. We put a new ignition coil on it and some transmission fluid in all cylinders and let it sit overnight it fired right up. Next day after it got to zero degrees outside it is doing the same thing and the brand new oil smells like gas again.

The mechanic I am taking it to believes it is the PMC causing the fuel injectors to pump more out during the cold.

(Has not wanted to start right every time it is cold)

2 Replies

HMAC300

MECHANIC
48,601 POSTS

I would say you have some type of blown head gasket or worse it shouldn't have zero compression in two cylinders. You at least need the head pulled to see what is going on.

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Sunday, December 18th, 2016 AT 11:31 AM

STEVE W.

MECHANIC
12,968 POSTS

Did this car set for a long time? Seven years old and only 40,000 miles on it suggests that it has been setting. If that is the case there may be a problem with the injectors sticking open enough to drain gas into the cylinders.

You say little to zero compression, but the transmission fluid helped? What are the dry compression and wet (a bit of oil into the cylinders to help the rings seal) numbers.
If it was not run a lot and now you have this issue it could be moisture worked inside and corroded parts and is causing the rings to stick. The cold temperature would act to make the cylinder tighter, squeezing the rings in so they do not seal. Take a borescope camera and look inside the cylinders to see what the problem could be.
Good luck.