1994 Mazda

[MitchellMotorsports.com]

I was looking at a '94 Mazda MX3GS for a second car. The car has 170k miles on it and appears to run good.

Two Questions: I took the oil filler cap off to check for blowby and the car stuttered and stopped. ( I did this twice) Why would it do that?

How many miles is too many?

Thanks for the replys...

[mdshunk]

My best educated guess would be that the PCV valve is crudded in a fully open position. When you remove the oil cap, you create a humungous vacuum leak, and stalling results. I suspect that if the vehicle had a new PCV valve installed, this problem would disappear.

[Unregistered]

Thanks for the reply.........appreciate it

Mike