Keith Browning Posted July 21, 2009 Share Posted July 21, 2009 I am replacing the coolers in an E-Bus and while stripping the harness back the convolute started to crumble in several places. Obviously heat got to it but I don't see any other signs of overheating so I assume this is long term heat damage. I haven't really seen this before other than one time I had noticed some crispness... Anyone else see this? Now my fun cooler job has just become more fun. Quote Link to comment Share on other sites More sharing options...
quicksix Posted July 21, 2009 Share Posted July 21, 2009 all the time, i think the e series holds more under hood temp then the f series..good thing most of our fleet is already on there 2nd harness... Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 24, 2009 Author Share Posted July 24, 2009 I agree that the heat levels might be higher in Econolines as there is a lot more crap packed in a smaller space which reduces airflow. I think one thing that may have compounded this bus's problems is that it was fitted with an add-on A/C compressor requiring additional belt, pulleys and the required brackets. Anyone familiar with this knows that in order to do that the installers have to remove much of the fan stator which was done here. Along with that, the shroud is slightly broken, the fan is missing pieces of several blades and it has an extended front bumper with no shrouding on the bottom to force incoming air through the cooling stack. We discussed replacing Econoline engine harnesses in another topic and I remembered the tip for snaking the CMP harness without any disassembly: I removed the hardshell connector and taped it to the end of the original wires that I cut from the harness at the main loom. Whoever it was that suggested that I owe you a cold pitcher of beer and a plate of chicken wings! Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted July 24, 2009 Share Posted July 24, 2009 Aaron, It looks like you gotta free meal comin' Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted July 24, 2009 Share Posted July 24, 2009 the shroud is slightly broken, the fan is missing pieces of several blades Keith, you may want to quote the fan blade and possibly a fan clutch, any blade that is missing parts of the blade is out of balance and putting extreme stress on the clutch. Just a suggestion but one you might consider..... Quote Link to comment Share on other sites More sharing options...
Aaron Posted July 24, 2009 Share Posted July 24, 2009 We discussed replacing Econoline engine harnesses in another topic and I remembered the tip for snaking the CMP harness without any disassembly: I removed the hardshell connector and taped it to the end of the original wires that I cut from the harness at the main loom. Whoever it was that suggested that I owe you a cold pitcher of beer and a plate of chicken wings! I like mild or medium wings, and if we're drinking draft, Blue will do. Gibson's finest is my whiskey of choice Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 24, 2009 Author Share Posted July 24, 2009 Originally Posted By: Keith Browning the shroud is slightly broken, the fan is missing pieces of several blades Keith, you may want to quote the fan blade and possibly a fan clutch, any blade that is missing parts of the blade is out of balance and putting extreme stress on the clutch. Just a suggestion but one you might consider..... Good advice there buddy! I have a new clutch and blade on the bench waiting to go on the truck. Quote Link to comment Share on other sites More sharing options...
Damon Posted July 26, 2009 Share Posted July 26, 2009 I had an 04 F sereis that has the harness melted by what appears to be chemical damage. I'm not at all sure why, and the customer has not yet opted to replace it. The FICM area looks the worst. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 26, 2009 Author Share Posted July 26, 2009 Eventually that decision will likely come to haunt him. On this harness I just installed there were several places where there was no protection and the take-off's for the CMP and CKP sensors were the worst. I can see the potential for driveability concerns being high. Did you ever figure out what the chemical damage was caused by? Quote Link to comment Share on other sites More sharing options...
Damon Posted July 29, 2009 Share Posted July 29, 2009 No clue what caused it, really. What's odd is that it didn't seem to touch the tape or convoluted tubing. This truck runs as you see here....no codes, no symptoms. Quote Link to comment Share on other sites More sharing options...
Aaron Posted July 30, 2009 Share Posted July 30, 2009 Someone did a reflash without taking the FICM relay out Quote Link to comment Share on other sites More sharing options...
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