passenger side third spark plug back
Driver side ?
It is in the driverside head between the front 2 spark plugs.
It is on the driverside head up front by the #1 spark plug.
A person must leave the right size gap for the spark plugs when changing them. The 1999 Chevy Suburban has a spark plug gap of .060 inches.
A 2003 Chevy Suburban will crank but not start if it has no spark or fuel. Checking for a clogged fuel filter or fouled spark plugs can help to resolve the problem.
take it to the dealer
.035
.045
Electronic Spark Timing (EST) circuit is shorted to ground.
The spark plug gap in your 1999 Chevrolet suburban is dependent upon the type of engine. The standard engine spark plug gap is .011.
5.7l & 7.4 = .60
0.060
The spark plug gap is listed in your owners manual and under the hood on a placard.