have 250trailblazer won't crank , have fire spark fuel and compresion, whats wrong?[img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-confused.gif[/img]

 

What year, how many miles, is the plug wet from fuel? have you tried a new plug?

 

What year and how much compression do you have?

 

thanks, tried new plug no change, cleaned carb, and no change. plug not wet with fuel, tried stater fluid, still no bang! my 250 is a 2001 rode hard on weekends on dirt trails in ocala, no mudd or water. last outing seemed to be running hot , got it home hasn,t fired since?

 

How much compression?

 

yeah the compresion should be around like 115 for good compression. If it gets below like 80 it wont fire. go to a dealer or mechanic shop and have them check it out