'98 Possible Head Problems
Thread Starter
|
New User
Joined: Mar 2005
Posts: 2
Likes: 0
'98 Possible Head Problems
Heres the deal... 98 with a 4.6, 150k miles. The radiator has a leak, can fix that. Problem is when at a stop then accelerating it almost dies at times, runs rough. Before I replaced plugs and wires it really ran rough. Replaced fuel filter also. But it still has that issue, oh and it doesnt blow hot air... So had it checked guy is a Dodge mechanic but had a scanner. he said misfire on a certain cylinder, he was saying either cracked head or head gasket. Is this right? If so am I better off getting a new motor or fixing the head? Any help/advice appreciated! Thanks.
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
...Welcome to Ford Truck Enthusiasts! If you have a minute check out the Guidelines, it will help you to navigate through and understand FTE.
Stick around someone will be by shortly to answer your question.
We are pleased you have chosen the best source for Fords!
Enjoy....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
Stick around someone will be by shortly to answer your question.
We are pleased you have chosen the best source for Fords!
Enjoy....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
Cargo Master
Joined: Dec 2004
Posts: 2,232
Likes: 3
From: NE Texas
Checking codes is not adequate to come up with a meaningful diagnosis. You need to do a cylinder leak down test and listen for escaping air when pressurizing that cylinder. You also can pressurize the cooling system to see if it is losing pressure.
Good luck,
Doc
ASE Master
Good luck,
Doc
ASE Master
New User
Joined: Mar 2005
Posts: 5
Likes: 0
From: Bloomington, MN
Its basically where you put the motor on TDC compression and pump the cylinder full of air...there is a acceptable amout of "leak down" in the system, if you find a hole that is not within speck, you have your culprit.
You need compression, spark and fuel to have combustion, I would get the missfire code from the NGS....or what ever you are using and check that hole for spark, injector pulse, and do a leak down test.
Later,
Erik
You need compression, spark and fuel to have combustion, I would get the missfire code from the NGS....or what ever you are using and check that hole for spark, injector pulse, and do a leak down test.
Later,
Erik
Thread
Thread Starter
Forum
Replies
Last Post
creechin
1999 - 2003 7.3L Power Stroke Diesel
8
Sep 20, 2009 07:26 PM
