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  1. R

    Truck died after idling now won’t start

    I'm a retired Ram/Jeep Truck Engineering electrical engineer that specialized in Wiring durability testing. I had a Cummins test truck (dual batteries) that kept having the left battery have a low state of charge. A visual inspection of the battery post /battery cable clamp interface looked fine...
  2. R

    1990-1993 Parts Catalog

    It's sold.
  3. R

    1990-1993 Parts Catalog

    Photos added to my post above.
  4. R

    1993 Engine Runs Rough One Second, Then Will Run Fine For Awhile, And Then Rough Again

    You're welcome!
  5. R

    1990-1993 Parts Catalog

    I have a Mopar 1990-1993 truck parts catalog that I'd like to sell to a Dodge enthusiast. I don't have enough posts on this Forum that will allow me to use the For Sale section. eBay is an option but I don't know if it would hit the right audience. Any ideas how to find someone that can use this...
  6. R

    1993 Engine Runs Rough One Second, Then Will Run Fine For Awhile, And Then Rough Again

    Turned out to be a plenum gasket leak (also referred to as a belly pan gasket, connects the plate and the manifold together), and/or a bad crank position sensor. The plenum gasket blew out in one spot, and while the intake was off the engine the crank position sensor could be accessed so it was...
  7. R

    Crank Position Sensor Replacement - 1993 5.2L

    I want to replace the crank position sensor on my 1993 D250, 5.2L auto. I have found the wiring pigtail for it but can neither see nor feel with my hand the sensor itself, neither from above or underneath the vehicle. There's no clearance for a tool. Is there a method to replace the sensor other...
  8. R

    Trans Fluid

    What trans fluid should I use in a 1993 D250 5.2L 4-spd auto? I presume the original Dexron has been superseded by a different type or style?
  9. R

    Intake heater coding on startup

    The heaters will not actuate with a hot engine (they're not needed with a hot engine). The amount of time the heaters (two) initially actuate before cranking and then cycle after starting is dependent on the engine temperature.
  10. R

    1993 Engine Runs Rough One Second, Then Will Run Fine For Awhile, And Then Rough Again

    I'll look at it. Thanks. Anyone else with ideas?
  11. R

    1993 Engine Runs Rough One Second, Then Will Run Fine For Awhile, And Then Rough Again

    1993 D250, 5.2L, auto trans., 110K miles. I rarely drive it, it's garage stored and I only use ethanol free rec gas with fuel stabilizer. This truck is rust free and all the underside components (suspension, bushings, isolators, brakes, etc.) have been recently replaced - drives like a brand new...
  12. R

    A/C Compressor Housing Cracked - 1993 D250

    The A/C compressor in my 1993 D250 developed a hole in the housing and lost all its freon. I've been told that small metal pieces probably got circulated into the condenser, A/C radiator, drier bottle, lines, etc. and simply replacing the compressor is not a viable fix. Anyone have experience...
  13. R

    Battery failure under Warranty/won't pay

    A component of battery life is temperature, hotter climates have much lower expected average battery life. On a dual battery application, the batteries are in parallel via large gauge cables and are effectively/electrically one battery. Differential in battery life may be due to one battery...
  14. R

    Why is gvwr lower than axle weight ratings?

    Besides the towing/hauling weight requirements listed above, there are max. temperature limits that are dictated by towing/hauling ratings. These include trans. fluid, engine coolant, engine oil, and differential fluid. As the weight ratings increase, cooling systems become more robust.
  15. R

    What have you plugged into 110v?

    I'm a retired Ram/Jeep engineer that was in charge of the battery/starter/alternator system. If you need more than 400W you go directly to the battery terminals, or on later models the "HAPP" (Hi Amperage Power Point) if so equipped - and then use an aftermarket inverter. Alternator size is not...
  16. R

    Air Pump Removal

    The air pump being part of the emissions system, an OEM will never explain how to remove/eliminate those components. That could land them in hot water with the EPA.
  17. R

    '93 D250 Speedometer Accuracy When First Starting Out Driving For The Day

    '93 D250, 5.2L, auto. trans., with no rust :). My speedometer stopped working and it turned out to be the VSS. Bought a replacement from NAPA (Echlin brand). When I first start out driving the speedo reading can be up to 15MPH too low (via using a GPS phone app). After driving for 30-45 minutes...

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