Mechanics

2.4 LITRE CRANKS WONT START

2004 Pontiac Sunfire • 294,000 miles

Have spark and fuel and good air cranks for 5 seconds then vapour locks
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Nick1234444
February 2, 2012.



What do you mean by vapor locks?

Tiny
Fixitmr
Feb 2, 2012.
The car will crank for 5 seconds and then lock up and we have feul and spark and just changed the crankshaft positioning sensor and put new plugs

Tiny
Nick1234444
Feb 2, 2012.
Was it doin this before ya changed stuff?

Tiny
Fixitmr
Feb 2, 2012.