<TABLE style="WIDTH: 468pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=624 x:str><COLGROUP><COL style="WIDTH: 468pt; mso-width-source: userset; mso-width-alt: 22820" width=624><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl28 height=17 width=624>
Common Causes for loss of coolant</TD></TR><TR style="HEIGHT: 12.75pt; mso-height-source: userset" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
EGR Cooler leaking</TD></TR><TR style="HEIGHT: 12.75pt; mso-height-source: userset" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
EGR cooler hose leaking</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Oil Cooler plugged or leaking (which elevates oil temps AND prevents coolant flow to EGR cooler</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17 width=624>
http://dan.prxy.org/Truck/6L_bible_html/html/Page_074.html</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Blown Head Gaskets from stretched TTY bolts, most likely from excessive CP (cylinder pressure)</TD></TR><TR style="HEIGHT: 26.25pt; mso-height-source: userset" height=35><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 26.25pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=35 width=624>
Bad degas bottle cap (if you are puking coolant, you should replace the degas bottle cap after fixing the root problem).</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Clogged Radiator (air side)</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Thermostat</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Some suspect a collapsed radiator hose</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Coolant Temperature Sensor</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Injector cup</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Glow plug cup</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=17 width=624>
Warped or cracked head</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 height=17 width=624>
Water pump fins are split where they go around the shaft:</TD></TR><TR style="HEIGHT: 38.25pt" height=51><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 38.25pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl27 height=51 width=624>
Problem: When they fail, they only spin for a while and when they get hot the spinning will slow down. An easy way to check for this problem is pull the hose off the degas bottle from the intake it should pump the same amount out hot or cold. This can make your engine puke if it is your problem.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17 width=624>
http://www.thedieselgarage.com/forums/showthread.php?t=68584&page=2</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: silver; WIDTH: 468pt; HEIGHT: 25.5pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 height=34 width=624>
Common Root Causes for failed head gaskets - overboost and high cylinder pressures or warped heads (early on there were some torquing and casting problems)
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Note: the degas bottle cap (coolant reservoir cap) should be replaced if it's been puked through more than once.