Whats compression supposed to be at on 04 V6 ?

2002BLGT · August 11th, 2008, 09:46 PM

Anybody got a definite answer on this ?

CNASHGO · August 11th, 2008, 11:17 PM

msn auto says that it is 9.3:1

itschristorres8 · August 11th, 2008, 11:42 PM

you want piston or compression for a compression test

im talking with woody on aim now. Tell me whats going on with the test

compression pressure dropping as you were reading?
how many times did you let it turn over? those numbers all seem low.
your supposed to let it turn over about 5-6times. throttle wide open. then wait a minute to see if theres a leak

i dont see why you did a compression test to solve a miss fire

itschristorres8 · August 11th, 2008, 11:49 PM

look at the passenger side wires.

it should go like this 4-6-5 on the coil
the 4 going to cylinder 4
the middle on the coil #6 going to cylinder #6(last cylinder drivers side
the the last on the coil(bottom right) going to the middle drivers side cylinder #5

people always confuse 4-6-5 and do 4-5-6 which will cause a misfire

August 11th, 2008, 09:46 PM	#1
2002BLGT Banned Join Date: Jun 2007 Location: Bedford VA Posts: 838	Whats compression supposed to be at on 04 V6 ? Anybody got a definite answer on this ?

August 11th, 2008, 11:17 PM	#2
CNASHGO Regular 2005 Ford F150 FX4 Join Date: Mar 2007 Location: Montana Posts: 149	msn auto says that it is 9.3:1 __________________ 2005 Ford F150 FX4-New Toy MM Truck Crew 2002 Ford Mustang V6-Sold 1997 Ford Mustang V6-Sold

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August 11th, 2008, 11:42 PM	#3
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,864	you want piston or compression for a compression test im talking with woody on aim now. Tell me whats going on with the test compression pressure dropping as you were reading? how many times did you let it turn over? those numbers all seem low. your supposed to let it turn over about 5-6times. throttle wide open. then wait a minute to see if theres a leak i dont see why you did a compression test to solve a miss fire

August 11th, 2008, 11:49 PM	#4
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,864	look at the passenger side wires. it should go like this 4-6-5 on the coil the 4 going to cylinder 4 the middle on the coil #6 going to cylinder #6(last cylinder drivers side the the last on the coil(bottom right) going to the middle drivers side cylinder #5 people always confuse 4-6-5 and do 4-5-6 which will cause a misfire

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