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rv:ram_promaster [2023/06/23 09:33]
frater_secessus [further reading] added kip |
rv:ram_promaster [2024/05/13 12:15] (current)
frater_secessus [electrical] |
| The PM is a front-wheel drive platform with nearly straight sides, tight turning circle, low cargo deck height, and a wide (74") cargo area. | The PM is a front-wheel drive platform with nearly straight sides, tight turning circle, low cargo deck height, and a wide (74") cargo area. |
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| It comes in low (65" standing room) and high roof (76" standing room) models, with 136" and 159" wheelbases yielding 10' and 12' cargo areas respectively. There is also an extended body on the 159" wheelbase; this option has a 13.33' cargo area and is only available on the 3500 model.((https://www.ramtrucks.com/en/pdf/2014_ram_promaster_eBrochure.pdf)) | It comes in low (65" standing room) and high roof (76" standing room) models, and beginning in 2023 there was the introduction of the "Super High" roof (86" standing room). Wheelbase options are either 136" or 159", yielding 10' and 12' cargo areas respectively. There is also an extended body on the 159" wheelbase; this option has a 13.33' cargo area and is only available on the 3500 model.((https://www.ramtrucks.com/en/pdf/2014_ram_promaster_eBrochure.pdf)) |
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| {{http://zombdrive.com/images/2014-ram-promaster-cargo-van-2.jpg?200|159WB; note space between end of sliding door track and rear of vehicle. }}The 1500/2500/3500 badges are ambiguous.((http://www.promasterforum.com/forum/showpost.php?p=182433)) The 159" wheelbase is offered on the 2500 and up.. The 159" Extended model is available only on the 3500. The only confirmed difference between the 2500 and 3500 is a sway bar added on the 3500.((http://www.promasterforum.com/forum/showpost.php?p=182433&postcount=63)) | {{http://zombdrive.com/images/2014-ram-promaster-cargo-van-2.jpg?200|159WB; note space between end of sliding door track and rear of vehicle. }}The 1500/2500/3500 badges are ambiguous.((http://www.promasterforum.com/forum/showpost.php?p=182433)) The 159" wheelbase is offered on the 2500 and up.. The 159" Extended model is available only on the 3500. The only confirmed difference between the 2500 and 3500 is a sway bar added on the 3500.((http://www.promasterforum.com/forum/showpost.php?p=182433&postcount=63)) |
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| Also see [[https://blog.fcanorthamerica.com/2008/02/11/jeep-brake-traction-control-explained/|FCA's description of a similar system]] in the Jeep line. | Also see [[https://blog.fcanorthamerica.com/2008/02/11/jeep-brake-traction-control-explained/|FCA's description of a similar system]] in the Jeep line. |
| ===== electrical ===== | ===== alternator ===== |
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| The gasoline PM has either a 180A or an optional 220A alternator; they are traditional and not of the modern "smart" variety. [[https://www.promasterforum.com/threads/alternator-amps.93526/post-737110|This VIN decoder]] will indicate which alternator a van was built with. \\ The diesel may have a 225A unit. | The gasoline PM has either a 180A((Lester 11792)) or an optional 220A Denso-type alternator((Lester 11793)); they are traditional "fixed voltage" and not of the modern "smart" variety. [[https://www.promasterforum.com/threads/alternator-amps.93526/post-737110|This VIN decoder]] will indicate which alternator a van was built with. In either case the six-groove pulley ratio is 2.84:1.((https://www.promasterforum.com/threads/alternator-specs-for-gas-pms.99215/post-794345)) Output when cold is ~14.3v; voltage may be regulated down to ~13.8v when hot. |
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| | The diesel may have a 225A unit. |
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| | >> the ECM controls the field circuit, so now a computer has replaced the relatively inexpensive, stand-alone voltage regulator. Fourth, Chrysler gradually changed over to B-circuit control; this means the ECM switches the hot side of the field circuit instead of the ground side. -- [[https://www.motor.com/magazine-summary/diagnosing-computer-controlled-charging-systems-september-2007/|source]] |
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| | * [[https://www.promasterforum.com/threads/180-amp-alternator-with-amp-clamp-on-output.99118/post-792681|This post]] on the Promaster forum shares official load estimates for various accessories. |
| | * [[https://www.promasterforum.com/threads/alternator-charging%E2%80%A6too-complex-for-a-novice.95350/post-755316|This post]] describes the procedure for alternator replacement. |
| | * [[https://www.youtube.com/watch?v=KcLaBxzz6ZM|This Promasters Only video]] covers alternator replacement and upgrades |
| | * [[https://www.promasterforum.com/threads/alternator-charging-problem.89222/post-686694?nested_view=0|this post]] describes the voltage regulation via ECU |
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| | see [[https://www.reddit.com/r/VanLife/comments/1bph4jm/im_paranoid_of_burning_up_my_alternator_with_dc/kxgz8co/|this post]] on the use/abuse of the PM alt for house bank charging |
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| | ==== excess capacity at idle ==== |
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| | Using 28A as the idle draw((https://www.promasterforum.com/threads/180-amp-alternator-with-amp-clamp-on-output.99118/post-792622)), 750rpm as the idle speed, 2.84 as the pulley ratio, 50% as the continuous duty rating, and the hot rating output curves linked below: |
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| | * at idle [[http://img.mousetrap.net/misc/altRam180A.jpg|the 180A alt]] will have ~25A excess capacity |
| | * at idle [[http://img.mousetrap.net/misc/altRam220A.jpg|the 220A alt]] will have ~37A excess capacity |
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| | Note that the radiator fans can add 65A when they come on, reducing excess capacity to zero. |
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| | ==== fusebox layout ==== |
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| | {{https://img.mousetrap.net/pm/pmfuses.jpg?400}} |
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| | ==== upfitter connection point ==== |
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| | some vans are ordered from with an upfitter connection, which can be tapped for D+ signals, 50-70A B+((depending on year)) , etc. See [[https://www.promasterforum.com/threads/all-the-ram-promaster-upfitter-connector-information-and-pinouts-in-one-file.98176/|this thread]] for details. |
| | ===== fuel consumption ===== |
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| | [[https://www.fuelly.com/car/ram/promaster_2500|Data on fuelly]] suggests the gasser averages ~15mpg. The large frontal area of the van means that reducing cruising speed may affect MPG greatly. |
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| | ==== idling ==== |
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| | Experiments on the Promaster forum suggest idling consumption is between 0.4-0.6 GPH based on ambient temps: |
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| | > .6gph in winter (below 38f kicks in the high idle) and .4gph summer.((https://www.promasterforum.com/threads/fuel-consumption-of-a-gasser-pm-flowmeter-for-ac-purposes-a-thought-exercise.95702/post-759330)) |
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| | Additional loads (HVAC fans, aux battery charging) would increase gph somewhat. |
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| [[https://www.promasterforum.com/threads/180-amp-alternator-with-amp-clamp-on-output.99118/post-792681|This post]] on the Promaster forum shares official load estimates for various accessories. | |
| ===== known issues ===== | ===== known issues ===== |
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| ===== 62TE transmission ===== | ===== transmission ===== |
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| | ==== ZF 9HP48 ==== |
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| | Newer gas models have the [[https://en.wikipedia.org/wiki/ZF_9HP_transmission|9-speed ZF transmission]]. |
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| | ==== 62TE transmission ==== |
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| This 6-speed auto is used in gas models. It uses ATF+4 and/or Chrysler MS-9602 spec fluid.((https://www.allpar.com/forums/threads/62te-problem.157606/page-2#post-1084785175)) \\ | This 6-speed auto is used in gas models. It uses ATF+4 and/or Chrysler MS-9602 spec fluid.((https://www.allpar.com/forums/threads/62te-problem.157606/page-2#post-1084785175)) \\ |
| * NAME: ATF | * NAME: ATF |
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| | ==== tow/haul mode ==== |
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| | Tow/Haul is off by default. See [[https://www.promasterforum.com/threads/tow-haul-mode.56338/post-829461|this post]] about adding a 12v timer to automate the process of turning it on. |
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