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  1. M

    Meritor transmission problems

    Than use dielectric grease at all wiring connections after gentle cleaning
  2. M

    Sprinter PM results

    Consider replacing it with a new odometer and keeping this one for posterity. I would also contact Mercedes for some advertising/promotional considerations! Congrats
  3. M

    Radiators and Condensers

    Carmine, When I got out of the business, there was so much consolidation going on, I do not know who is still left. Griffin, Modine, to name a few are still around to my knowledge. I got out because the companies started marketing complete radiators cheaper than they would sell me a core, and...
  4. M

    Radiators and Condensers

    I would like to chime in here as I used to own a radiator shop. There are many factors that relate to cooling, like the number of fins per inch and the type of fin. Some fins are flat and others are louvered. When opting for a replacement, stick to known quality names such as Modine and others...
  5. M

    Our Freightliner Nightmare Continues. Your Opinions, Please.

    Be careful to keep the failed part. I know nobody wants to drag an oil pan around, but you will be caught short when you have no causal part to submit for reimbursement. Having been a Ford Heavy Truck service manager in a prior life, the engine manufacturers/re-manufacturers treated us just as...
  6. M

    Algae and Bacteria in Fuel

    You can use an algaecide to kill the algae, but it does not remove the sediment, that is several filters after an issue. I would check for fresh fuel filters at the diesel pumps, and a large volume of fuel being sold. Stations that have rusted fuel filters because they haven't been changed in...
  7. M

    Turn signal

    You are just using a circuit breaker in place of the fuse, instead of a fuse blowing, the circuit breaker trips. You can also trip it manually if you see/smell the wires burning. Then you have found the problem, which is a hot wire on the turn signal circuit which is finding ground or earth for...
  8. M

    Turn signal

    Ah the smoke test! If you jumper the offending circuit to a DC breaker, you can trip the breaker quickly when you find the issue.
  9. M

    Miles for new valves

    They should have Magnafluxed the head with all of the valves out, i have also seem heads that pressure tested fine, cold, but showed cracks when the head was heated. Premature valve wear is attributed to poor valve adjustment. Valves only cool when they are seated. If they are too tight, they...
  10. M

    13 speed transmission

    The simple thing is to make sure the driveline is in time. Secondly, check to make sure the flywheel housing and the flywheel are concentric. The rear housing can be off and side load the trans shafts. Scott
  11. M

    High oil pressure - 3126 engine

    Rule number 1 in diagnostics, check the simplest things first! Scott
  12. M

    How do I find an air leak ?

    I used freon at the air compressor out port and quickly tightened it back up and used my freon leak detector to find the leaks. I even found a screw into the air line leading to the roof mounted air horns that was behind interior trim, it was one you could never hear. The soapy water in a spray...
  13. M

    Serpantine splitting

    The pulleys have to run true with no radial or axial end play. The pulleys also do wear. All of the pulleys should be checked individually, with no belt attached, so no load. Then check alignment one to the other. Splitting of a serpentine belt indicates misalignment or axial end play. Scott
  14. M

    High oil pressure - 3126 engine

    you could have a sticking pressure relief valve on the oil pump, that is a cup like piston and a spring designed to pop off when the oil pressure becomes too high. When they stick, you can blow oil filters off and result in catastrophic engine failure due to lack of lube. Because you had the...
  15. M

    Catalyst Injection System...Does it work????

    I would think that the initial spike is due to cleaning the combustion chamber by de-carboning it, to include injector nozzles and once clean, the engine normalizes. It is like high flow air filters, the volume of air in normal driving conditions will never require the volume available, and...
  16. M

    Fed up & disgusted!

    late arrival to this thread but a few things to consider diagnostic wise: Provided the temp and oil pressure switches are working properly, tested by ohm meter, if there is no coolant to the switch due to coolant loss, there is nothing to transfer the high temp to either open or close the...
  17. M

    Van down

    Diagnostics can be difficult if you over complicate it. Rule of thumb is check the simple things first. You must have fuel spark and compression for a gasoline engine to run. Compression Fuel and air volume for a diesel engine to run. logically, if you ran out of gas, the pump may have been...
  18. M

    Differential fluid change

    Oil is cheaper than metal. Rear ends often have friction modifier requirements for lubrication As well as anti foaming additives that do dissipate. Lubricants serve several purposes: lubricate, cool, Suspend dirt, and transfer heat. If you want your oil to work as it is supposed to, give it a...
  19. M

    Regrooving Tires

    Tire grooving irons are available on many racing websites, and are also called tire sypers. Scott
  20. M

    How much air does your truck leak?

    I used to use freon in the line right off of the compressor and a freon leak detector to find the nuisance leaks. Sometimes they are a screw into a plastic line headed to an air horn, behind the interior trim. Sometimes they are hard to hear and the leak detector works great! Scott
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