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Fuel economy
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Fuel economy
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Fuel economy
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08-07-2018, 19:59
Post: #42
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RE: Fuel economy
Urnie,
At fast idle, disconnect the packard connectors at the Fan Drive Control Assembly (FDCA). This is the contraption that converts the Detroit Diesel pulse width modulation electrical signal into a proportional hydraulic pilot signal. The hydraulic pilot signal connects to the flow control valve at the fan motor and tells the fan to speed up or slow down. If you disconnect the packard connector signals from the FDCA, the fan should default to high speed. High speed may only be noticeable at fast idle or above. If the fan speed doesn't change then it's probably always on high speed. High speed is usually unmistakable because of the roar the fan makes, but if you're not familiar with it you may not be able to tell by sound. david brady, '02 Wanderlodge LXi 'Smokey' (Sold), '04 Prevost H3 Vantare 'SpongeBob' "I don't like being wrong, but I really hate being right" |
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| Messages In This Thread |
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Fuel economy - bingomaster05 - 11-08-2007, 16:08
2001 LXi fuel economy - Urnie-Medie - 08-04-2018, 15:39
RE: Fuel economy - rrueckwald - 08-04-2018, 23:30
RE: Fuel economy - Urnie-Medie - 08-05-2018, 17:52
RE: Fuel economy - davidbrady - 08-06-2018, 13:04
RE: Fuel economy - patticake - 08-06-2018, 19:45
RE: Fuel economy - Urnie-Medie - 08-07-2018, 19:26
RE: Fuel economy - davidbrady - 08-07-2018 19:59
Fuel economy - Jack and Liz Pearce - 11-09-2007, 02:18
Fuel economy - Jon - 11-09-2007, 03:39
Fuel economy - Ross - 11-09-2007, 04:43
Fuel economy - bubblerboy64 - 11-09-2007, 09:56
Fuel economy - Ross - 11-09-2007, 10:09
Fuel economy - Pete Masterson - 11-09-2007, 10:29
Fuel economy - willwander08 - 11-09-2007, 11:16
Fuel economy - Gardner Yeaw - 11-09-2007, 11:45
Fuel economy - Eric Johnson - 11-09-2007, 11:53
Fuel economy - Leroy Eckert - 11-09-2007, 12:53
Fuel economy - John McGinnis - 11-09-2007, 14:50
Fuel economy - Bob Lawrence - 11-09-2007, 15:13
Fuel economy - Joe Hagan - 11-09-2007, 15:32
Fuel economy - Jon - 11-09-2007, 18:40
Fuel economy - Joe Hagan - 11-09-2007, 19:16
Fuel economy - Pete Masterson - 11-10-2007, 04:54
Fuel economy - Ryan Wright - 11-10-2007, 09:30
Fuel economy - willwander08 - 11-10-2007, 09:46
Fuel economy - Ryan Wright - 11-10-2007, 09:47
Fuel economy - Ryan Wright - 11-10-2007, 10:00
Fuel economy - Stephen Birtles - 11-10-2007, 12:31
Fuel economy - Al - 11-10-2007, 12:32
Fuel economy - Gardner Yeaw - 11-10-2007, 14:24
Fuel economy - Al - 11-10-2007, 14:45
Fuel economy - Larry Dill - 11-10-2007, 15:40
Fuel economy - Don Bradner - 11-10-2007, 15:48
Fuel economy - Gardner Yeaw - 11-10-2007, 16:13
Fuel economy - David Brady - 11-10-2007, 16:22
Fuel economy - Gardner Yeaw - 11-10-2007, 16:27
Fuel economy - Jon - 11-10-2007, 17:35
Fuel economy - David Brady - 11-11-2007, 01:21
Fuel economy - willwander08 - 11-11-2007, 02:30
Fuel economy - pattypape - 11-11-2007, 06:39
Fuel economy - Ryan Wright - 11-11-2007, 08:52
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