6.4 radiator problems? - Diesel Forum - TheDieselStop.com
6.4L Power Stroke Engine and Drivetrain Discussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.

 
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post #1 of 10 (permalink) Old 09-10-2010, 06:22 PM Thread Starter
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6.4 radiator problems?

I've got a buddy looking to get into the used diesel market. He has been looking at 6.4's but had heard they eat radiators like every 40k miles. Is that bs, just like all 6.0's have egr issues? He has started looking at the dirtymax and I'm trying to save him from an isuzu motor! help me...

'05 F250 Lariat Crew Shorty Dark Stone FX4
AFE, MBRP single 304 4"w/ test pipe
ARP's w/ stock gaskets, Air Dog II 165
Driven Diesel Reg Ret fuel Kit
RCD Delete, 180/75's, 68mm VG Blow Jobby
Innovative Diesel Tuned SCT X3
Diesel Site coolant filter, Insight CTS
Overhead Auto Meters, Leveled
Homebrew traction bars
35x12.50x20 ATZ's on Ultra Mako's
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post #2 of 10 (permalink) Old 09-10-2010, 07:45 PM
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There have been some, especially Job 1 trucks from 08 model year that had alot of failures. Ford came out with a venturi-T to place in-line of the degas bottle. The hoses were then re-routed to pretty much take care of the issue.

There have still been a few failures, mostly those that were not caught right away with the recall.

I have 41K on my truck, orginal radiator.

They never really completely failed or left you stranded, rather just a little moisture at the seams down towards the frame.

So even then, people with the leaks continued to drive and travel/tow till they got around to the fix.

Some of the issues were thermostat related as well. So it was kind of a combo of things from the Job 1 and then a few job 2's.

I would not worry about it at all.

08F250 CC 6.4 PSD
Banks 6 gun/ram air
40' Stoneridge 5th wheel, coming in at 15.4K.
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post #3 of 10 (permalink) Old 09-10-2010, 08:38 PM
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I have one of those Job 1's that Senix is talking about. I got it with 25,000 miles on it, and the radiator crapped pretty much right away. But it was replaced, along with the thermostat, and it has been great since then. Just went over 40,000 miles and have pulled my 5th wheel all over East Texas and up to Branson MO and on to Omaha and back to Houston.

With mine, the dealer said the thermostat caused mine. It was the "old style". I really like this truck. I will admit, I had my doubts, but I'm good now for sure.
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post #4 of 10 (permalink) Old 09-10-2010, 08:49 PM
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I have a Job 1 08 at 71k miles rad started to leak had replaced now at 106k no problems at all truck has been good to me love it.
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post #5 of 10 (permalink) Old 09-11-2010, 09:51 AM
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Mine is a Job 1 also with 41K on it... No radiator problems at all. Had the Venturi recall done at 30K and have had no evidence of leakage

2008 Lariat 6.4L PSD, CC, LB, 4X4, Edge Evolution, and has been cosmetically altered!
2005 Alfa See Ya 5th Wheel SYF35RLIK
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post #6 of 10 (permalink) Old 09-13-2010, 08:54 PM Thread Starter
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right on guys. thanks for the inside scoop, i'll relay the info.
Does anyone know what build dates are considered job 1 or 2? Thanks again...

'05 F250 Lariat Crew Shorty Dark Stone FX4
AFE, MBRP single 304 4"w/ test pipe
ARP's w/ stock gaskets, Air Dog II 165
Driven Diesel Reg Ret fuel Kit
RCD Delete, 180/75's, 68mm VG Blow Jobby
Innovative Diesel Tuned SCT X3
Diesel Site coolant filter, Insight CTS
Overhead Auto Meters, Leveled
Homebrew traction bars
35x12.50x20 ATZ's on Ultra Mako's
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post #7 of 10 (permalink) Old 09-14-2010, 05:10 AM
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Job build dates:

Job 2 start:07/30/07
Job 3 start: 01/02/08

That was for model year 2008 trucks.

08F250 CC 6.4 PSD
Banks 6 gun/ram air
40' Stoneridge 5th wheel, coming in at 15.4K.
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post #8 of 10 (permalink) Old 09-14-2010, 08:55 PM Thread Starter
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awesome! thanks senix...

'05 F250 Lariat Crew Shorty Dark Stone FX4
AFE, MBRP single 304 4"w/ test pipe
ARP's w/ stock gaskets, Air Dog II 165
Driven Diesel Reg Ret fuel Kit
RCD Delete, 180/75's, 68mm VG Blow Jobby
Innovative Diesel Tuned SCT X3
Diesel Site coolant filter, Insight CTS
Overhead Auto Meters, Leveled
Homebrew traction bars
35x12.50x20 ATZ's on Ultra Mako's
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post #9 of 10 (permalink) Old 07-21-2019, 01:17 AM
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I'm getting tired of this.... Thorough go through 3 years ago checked everything out and the radiator was leaking - bought a new radiator.

Had some health issues and then drove less than 5,000 miles. Then took it on a road trip last month and at 41K found myself in Moab, UT purchasing radiator #3. Whew, no worries now....then I got home, 4,000 miles later, dropped the 5th wheel off at storage and did an oil change....found the radiator leaking again. Radiator number 4 replacing the 3 week old radiator number 3.

2008 6.4 F-250 Super Duty extended cab 4WD I'd really rather not do this every 5,000 or so miles. This **** is getting expensive.
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post #10 of 10 (permalink) Old 07-29-2019, 09:39 AM
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I am radiator 4. 2 fords and now my 2nd mishimoto.

If it wasnt for the lifetime warranty on the mishimoto, this truck would be gone

2002 F350 CC LWB 4x4 DRW(converted from a SRW), Boost,Pyro,Trans Temp A Pillar, DP Tune F5 Chip,Stock,60Tl,40T,60E. 4" magnaflow exhaust.
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