Changed radiator, now truck wont start

TINAMARIEPARRACK

MEMBER
1999 CHEVROLET SUBURBAN
V8
4WD
AUTOMATIC
150,000 MILES

Changed the radiator, now the truck turns over, but will not start. Was advised to check spark plugs for liquid. Thought it might have been a head gasket. Plugs are dry. Fuses are good. Don't know what else to do please help!

Tuesday, January 14th, 2014 AT 4:24 PM

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,700 POSTS

Are you getting spark to the plugs and fuel to the fuel rail?

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Wednesday, January 15th, 2014 AT 5:28 AM

TINAMARIEPARRACK

MEMBER
3 POSTS

I believe there was spark to the plugs. My boyfriend took the plugs out and sand papered them to clean them up. I am not sure about the fuel to the rail. How do you check for that?

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Wednesday, January 15th, 2014 AT 10:41 AM

TINAMARIEPARRACK

MEMBER
3 POSTS

Also was told that if there was an air bubble in the radiator when it was changed that this would prevent the truck from starting. Is this true?

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Wednesday, January 15th, 2014 AT 10:42 AM

JACOBANDNICKOLAS

MECHANIC
109,700 POSTS

Here is a video for checking fuel pump pressure. Also, make sure the spark to the plugs is a hot blue snapping spark.

https://www.2carpros.com/articles/checking-fuel-pressure-regulator

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Thursday, January 16th, 2014 AT 5:32 AM