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2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

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Old 11-25-2013, 10:43 AM
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98.5 dodge ram 2500 cummins...it only hard to start when it turns cold and the volts are jumping for few mins. to can this be the crank senor
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Old 11-25-2013, 10:47 AM
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Glow plugs.
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Old 11-25-2013, 10:52 AM
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where are they that
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Old 11-25-2013, 10:57 AM
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Be more specific about what's going on with your truck and I can help you further. Do you have a block heater?
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Old 11-25-2013, 11:04 AM
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block heater and grid heater working......when the temp drop cold the volt meter showns low volt on start up..when it start every time...after the truck sets for 12 or more hour its hard to start
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Old 11-25-2013, 11:11 AM
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I don't think the cummins ever had glow plugs.

I would look at electrical stuff. Start with the battery
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Old 11-25-2013, 11:14 AM
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grid heater
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Old 11-25-2013, 11:26 AM
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First check your battery connections. Are they corroded?
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Old 11-25-2013, 11:35 AM
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checked all that first
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Old 11-25-2013, 07:36 PM
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how cold are you talking? without the block heater being plugged in in very cold temps, cummins motors will be hard to start.
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Old 12-01-2013, 12:38 AM
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Have you had the updated fuel pump installed in the fuel tank? This was a problem with hard starting on the encore engines. 1998.5 24 valve diesels and up to 2005. The new fuel pump takes the place of the old pump that was mounted to the filter housing.
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Old 12-01-2013, 12:17 PM
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Yes everyone is correct that the Cummins doesn't have glow plugs. Instead they have a grid heater plate that is in the air intake. So as air is drawn into the engine it is warmed by the grid heater. Your truck should have a preheater symbol on the dash that you need to wait til it goes off before trying to start your truck. And your voltage will jump up and down til the grid heater goes off.
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Old 12-02-2013, 12:28 PM
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98.5 dodge 2500 diesel.....Hard to start when temp drops..once she start she is fine.
grid heater is fine 12v and hot...can the TPS cause this problem
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Old 12-02-2013, 12:42 PM
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the codes that come up are 1693 & 222
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Old 12-02-2013, 05:50 PM
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P0222 Idle Validation Signals Both Low. No clue what that means.

P1693 DTC Detected in Companion JTEC Mod. No clue what that one means either....

Hopefully one of our diesel owners will be along soon.
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Old 12-02-2013, 05:50 PM
 
 
 
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