Re: '99 Dodge 3500 diesel w/ high idle at start up
[Re: apairof66s]
#1675778
09/23/14 09:45 AM
09/23/14 09:45 AM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Quote:
Just recently when we start up the diesel it high idles anywhere between 1200~1400 rpm. The temperature gauge stopped working as well. Any ideas on where to start looking for the problem ???????? Also, this is a stock cummins
Yeah, start with the obvious, the temp sensor.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: '99 Dodge 3500 diesel w/ high idle at start up
[Re: Guitar Jones]
#1675779
09/23/14 12:23 PM
09/23/14 12:23 PM
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Joined: Aug 2003
Posts: 691 North Carolina
apairof66s
OP
mopar
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OP
mopar
Joined: Aug 2003
Posts: 691
North Carolina
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Also just noticed the low fuel indicator light isn't working as well. Interesting that the check engine light hasn't come on yet...........
Last edited by apairof66s; 09/25/14 02:02 AM.
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Re: '99 Dodge 3500 diesel w/ high idle at start up
[Re: apairof66s]
#1675782
09/25/14 12:42 PM
09/25/14 12:42 PM
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Joined: Jul 2003
Posts: 4,085 The Wet Coast, Canada
megajoltman
master
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master
Joined: Jul 2003
Posts: 4,085
The Wet Coast, Canada
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Sounds like a ECM issue, Check for error code P0606. It will effect the WTS light and other gauge stuff too.
1969 Dart 383/727/D60
CTD Ram 4x4 Mega Cab
Procharged 350Z
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Re: '99 Dodge 3500 diesel w/ high idle at start up
[Re: apairof66s]
#1675783
09/25/14 02:15 PM
09/25/14 02:15 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Quote:
This gets more and more interesting. The "wait to start" light hasn't worked since all of this started also..............
The "wait to start" light isn't going to come on unless it's cold enough, some 50 degrees or something of intake air temperature.
If the engine coolant temp sensor is bad and the PCM is seeing -40* but the intake temp sensor is saying 68* the PCM is confused and reverts to a "safe" programming mode. Have you replaced the coolant temp sensor yet?
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: '99 Dodge 3500 diesel w/ high idle at start up
[Re: apairof66s]
#1675788
10/10/14 05:45 PM
10/10/14 05:45 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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You need to have it scanned at the dealer with a DRBIII. The generic ones aren't as reliable and don't provide as much information as you can get off the DRB. Off hand I would be looking at the throttle position sensor and all temp sensors for any abnormal readings. Might not be the sensors themselves but the wiring. The low voltage signals can be easily manipulated by adjacent wiring.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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