Logo
FULL SITE MENU

1985 Mercury 25XD

T

terje

New member
"My 25XD can suddenly stop run

"My 25XD can suddenly stop running on one of the cylinders. After some time it can start again and the engine runs normal for hours. Next time I start, cold or hot, it can run on only one cylinnder again. Stops engine and starts it again and it runs normaly. It is the same cylinder causing problem every time, lover or nr 2.
Any sugestions of what is wrong?"
 
"Are you losing the spark on o

"Are you losing the spark on one of the cylinders?

If so you can start with an easy test - swap the coils and see if the problem moves.

But basic tersting is always practical - test the compression and then test the spark.

Spark problem, test the whole ignition system..."
 
Back
Top