04 F150

M

mike_walsh

Member

• Mar 15, 2009

• #1

"Lost #3 cylinder. Tested thi

"Lost #3 cylinder. Tested this by pulling plug wires with no change in RPM. Changed plugs, then tested plug wires-no change. Do not know if it is getting fire. Any thoughts?"

 

justintime

Silver Medal Contributor

• Mar 15, 2009

• #2

check for spark

check for spark

 

M

mike_walsh

Member

• Mar 16, 2009

• #3

can just one side of the coil

can just one side of the coil go bad?

 

M

mike_walsh

Member

• Mar 16, 2009

• #4

can i swap coils to see if thi

can i swap coils to see if this changes bad cylinder

 

justintime

Silver Medal Contributor

• Mar 16, 2009

• #5

yes swap coils

yes swap coils

 

M

mike_walsh

Member

• Mar 17, 2009

• #6

"Swapped coils, no change. Me

"Swapped coils, no change. Mechanic thinks it could be a head gasket, exhaust valve not closing, rings, etc."

 

P

profisher

Advanced Contributor

• Mar 17, 2009

• #7

do a leak down test on #3 befo

do a leak down test on #3 before you tear it apart.

 

G

gcat911

New member

• Mar 19, 2009

• #8

I had a leaking intake seal th

I had a leaking intake seal that was causing #4
to run lien and miss at idle.

 

M

mike_walsh

Member

• Mar 20, 2009

• #9

can an injector go bad or get

can an injector go bad or get stopped up

 

justintime

Silver Medal Contributor

• Mar 21, 2009

• #10

yes

yes