boost hose slips off

bulls eye

SDD Junior Member
Joined
Mar 2, 2006
Messages
2
Reaction score
0
2004 crew cab, super duty,6.0,
boost hose blows off intake manifold
put back on, clamped real tight, still blows off.
Any body had this problem?
 

95_stroker

Jefe
Joined
Mar 28, 2005
Messages
6,809
Reaction score
3
Location
Cora, Wy
Make sure the connection is clean and oil free, once you get even just a little bit of oil in between the hose and the intake it cn be a real bear cat to keep a tight connection.
 

CHPMustang

Senior Member
Joined
Apr 6, 2005
Messages
6,352
Reaction score
2
Location
Plano,TX
Here's a couple TSB's on the issue;
Some trucks may exhibit oil leakage from the hot side intercooler hoses. If one of the hot side intercooler hoses blow off it will cause the truck to exhibit a low power/low boost condition. Hot side intercooler tubes are no longer available as an assembly. Use the following parts as needed to service the condition:
Short upper hose, equal length elbow: 5C3Z-6C640-AA; metal tube: single alternator 3C3Z-6K769-DA or dual alternator 3C3Z-6K769-CA.
Long upper hose, unequal length elbow: 5C3Z-6C640-BA; metal tube: single alternator 5C3Z-6K769-AA or dual alternator 5C3Z-6K769-BA.
Use this hose and tube combination if the hose blows off
Clamps: upper hose 6C2Z-6K786-AA; lower hose to tube 6C3Z-6K786-CA; lower hose to intercooler 1C3Z-6K786-DA.
Lower hose, all: YC3Z-6C640-KA.
Clean the hose mating surfaces to ensure the hoses will stay in place. Seat the hoses completely onto their mounting surfaces before tightening the clamps to 9 ft/lbs. Test drive the truck while monitoring the boost pressures, which should be 22-25 PSI. An overboost condition will cause the hose to blow off.
TSB 05-13-5.
On 2004/05 trucks that exhibit the cold side hose/pipe blowing off at the intake manifold, replace the plastic tube with part #6C3Z-6C640-AA as in recall 05B29 (trucks built from 12-15-03 to 4-1-04), or repair as in TSB # 05-22-3 (trucks built from 4-1-05). Clean the intercooler and intake flange with brake parts cleaner. Seat the hose/pipe onto the intake manifold and torque the clamp to 9 ft/lbs (12 NM). Broadcast Message 1329, TSB 04-20-9, TSB 05-22-3.
 

alldiesels

SDD Junior Member
Joined
Nov 30, 2005
Messages
10
Reaction score
0
my truck use to do it alot, i cleaned it, lined up the grove and tightened the crap out of it, but they have a recal on it (if you have the plastic line) and they put a hard metal line on it, and after that even with nos never had a prob
robert
out
 

Pile Buck

SDD Junior Member
Joined
Apr 21, 2005
Messages
22
Reaction score
0
Location
Western Washington
Here is how a bridge and dock builder keeps the hot side hose on. I eventually bought after market hoses and clamps, hasn’t come off once since doing all this:thumbs . I also used this CAT glue when assembling the hoses.:sweet
 

Members online

No members online now.

Forum statistics

Threads
30,517
Messages
266,071
Members
14,629
Latest member
Colvinecoboost14
Top