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rv:ram_promaster [2020/10/11 19:48] 127.0.0.1 external edit |
rv:ram_promaster [2023/09/26 18:10] frater_secessus [62TE transmission] |
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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 ===== |
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| 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.promasterforum.com/threads/alternator-charging-problem.89222/post-686694?nested_view=0|this post]] describes the voltage regulation via ECU |
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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}} |
| ===== 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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===== known issues ===== | ===== known issues ===== |
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* 6th gear is very tall for MPG; the van will downshift in headwinds and on hills. | * 6th gear is very tall for MPG; the van will downshift in headwinds and on hills. |
* The transmission will downshift automatically on long descents for engine braking. | * The transmission will downshift automatically on long descents for engine braking. |
| * the clipboard is largely useless, but [[https://www.promasterforum.com/threads/clip-board.35306/|can be opened]] to allow for wiring or hardmounting accessories. |
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===== gas vs diesel ===== | ===== gas vs diesel ===== |
* a strong case for [[http://www.promasterforum.com/forum/showpost.php?p=101986&postcount=32|gas over diesel]] in the PM | * a strong case for [[http://www.promasterforum.com/forum/showpost.php?p=101986&postcount=32|gas over diesel]] in the PM |
| * Also see [[rv:diesel|this page]] on the problems with all modern diesel engines |
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===== recommended dealers ===== | ===== recommended dealers ===== |
===== filters and fluids ===== | ===== filters and fluids ===== |
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* Air Filter | * Engine air Filter ([[https://www.youtube.com/watch?v=G9XpTexYKl0|video walkthrough]], [[https://www.promasterforum.com/threads/engine-and-cabin-air-filter-change-for-only-28.84287/|forum walkthrough]]) |
* 3.6L gas -- [[http://amzn.to/2jkoodG|EcoGuard]]((http://www.promasterforum.com/forum/showpost.php?p=233449&postcount=2)), WW Grainger p/n 34NN15((http://www.promasterforum.com/forum/showpost.php?p=310737&postcount=8)) | * 3.6L gas -- [[http://amzn.to/2jkoodG|EcoGuard]]((http://www.promasterforum.com/forum/showpost.php?p=233449&postcount=2)), WW Grainger p/n 34NN15((http://www.promasterforum.com/forum/showpost.php?p=310737&postcount=8)), [[https://amzn.to/3ID0EOh|PG Air Filter PA99079]]((https://www.promasterforum.com/threads/engine-and-cabin-air-filter-change-for-only-28.84287/)), Carquest Premium 93703 (Advance Auto). |
| * 3.0L diesel -- [[https://amzn.to/3gBwezG|ECOGARD XA10258]]((https://www.promasterforum.com/threads/engine-and-cabin-air-filter-change-for-only-28.84287/post-658803)), Carquest Premium 501453 (Advance Auto) |
| * Cabin air filter ([[https://www.youtube.com/watch?v=rMYNjeulTpw|video walkthrough]], and same forum walkthrough post above) |
| * 3.6L gas -- [[https://amzn.to/3jhsc18|Ecoguard]]((media only)), [[https://amzn.to/3gBrcDc|PG]]((https://www.promasterforum.com/threads/engine-and-cabin-air-filter-change-for-only-28.84287/)), Carquest Premium 504496 (Advance Auto) |
| * 3.0L diesel -- possibly same as for gas model |
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* Coolant | * Coolant |
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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)) \\ |
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| It is possible that transmission temperature can be monitored with ScanGauge using the following settings:((https://www.promasterforum.com/threads/transmission-cooling-unit.96003/post-762387)) |
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| * TXD: 10F1229110 |
| * RXF: C46205913610 |
| * RXD: 3010 |
| * MTH: 000100400000 |
| * 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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===== further reading ===== | ===== further reading ===== |
| * Kip's [[https://www.youtube.com/@promastersonly1419|Promasters Only]] YT channel |
* [[http://www.promasterforum.com/forum/|Promaster Forum]] | * [[http://www.promasterforum.com/forum/|Promaster Forum]] |
* [[http://www.promasterforum.com/forum/forumdisplay.php?f=85|Promasterforum Dealer / Pricing]] subforum | * [[http://www.promasterforum.com/forum/forumdisplay.php?f=85|Promasterforum Dealer / Pricing]] subforum |
* [[https://www.allpar.com/forums/forums/vans.214/|Allpar van forum]] | * [[https://www.allpar.com/forums/forums/vans.214/|Allpar van forum]] |
* [[https://protonmail2061.autodesk360.com/g/shares/SH56a43QTfd62c1cd968323a14d3acedc102|CAD model]] of a Promaster/Ducato((https://www.reddit.com/r/vandwellers/comments/gkrixc/i_created_a_ram_promasterfiat_ducato_in_3d_feel/)) | * [[https://protonmail2061.autodesk360.com/g/shares/SH56a43QTfd62c1cd968323a14d3acedc102|CAD model]] of a Promaster/Ducato((https://www.reddit.com/r/vandwellers/comments/gkrixc/i_created_a_ram_promasterfiat_ducato_in_3d_feel/)) |
| * [[https://www.thedrive.com/news/34672/check-out-how-surprisingly-durable-this-chrysler-pentastar-v6-is-after-626000-miles|teardown after engine failure at 620k]] |
| * unconfirmeded: [[https://www.promasterforum.com/threads/mechanic-says-to-run-0w30-in-the-pentastar-3-6-instead-of-0w20-as-specd-thoughts.94385/#post-745986|ex-Pentastar engineer discusses 5w-20 vs 5w-30]] |
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