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#1
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Jacking car up in park
Hello,
Before starting my effort to do oil cooler lines and other fun parts, I jacked the whole front end of my car up a bit, with the AT in park. Might I have damaged anything? What is the worst that could happen? The car sat on two wheels and two jackstands for the last number of weeks. Now I get a funny noise (sounds like a baseball card in a bicycle wheel), and a slight vibration at 30-40MPH. Doesnt go away taking the car out of gear. Never happened before, and the last use was an XC trip, where the car was flawless the whole trip.
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#2
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Which car?
Jacking up the front of the car with the AT in Park should not have damaged anything. I've done it many times with many different cars, Benz and non-Benz. Might you have a worn-out motor mount that sagged while the car was at an angle? That might cause something in the power train to rub on the chassis.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#3
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82 300CD. Not a moor mount, as I just changed them. Perhaps another mount someplace in the line.
It is speed specific, and not reliant on the engine being in gear or whatnot. Im wondering if it is just flatspotting due to sitting for weeks on two wheels...
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#4
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Besure to block the Wheels.
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84 300D, 82 Volvo 244Gl Diesel |
#5
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I did
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#6
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Could be the driveshaft carrier bearing or one of the rear CV axles....
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#7
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It is frustrating when one event or repair or thing makes us
think we damaged something else. And too often , especially on our vintage cars, it is just a coincidence. I agree that sitting on stands for a few weeks or jacking car with trans in park is no big deal. Also think that you should check rear axles. Jack up the rear, put it in neutral, spin the wheels and listen and feel for something binding or clunking. Maybe with the windows down and a helper you can listen carefully and see if your bicycle card in the spokes noise is coming from the front, rear, left , or right. Do you feel anything in the shifter when this noise happens ?
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80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250 |
#8
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Nothing felt in the shifter or steering wheel. Nothing changes when it happens with the shifter in D or in neutral. Speed is the only factor - nothing up to about 25, then it builds, from 30-40 it is the most, then by over 45, it smooths perfectly, no noise, no rumbling.
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#9
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speed dependent only, could be tires, axles, diff or diff mounts, drive shaft flex joints, shocks, brakes, etc...
let the hunt begin!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#10
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did you move your fan shroud when you put the cooler lines in? maybe the shroud is not seated properly, and the fan is kissing it, maybe even just slightly under load when the engine twists a little.
I agree that sitting in park on two wheels should not have damaged it, I guess theoretically you could have bent the parking pawl, but I doubt it. Heres a pic of a parking pawl that shows how unlikely that is- I found this on the internet, so its not a MB, but shows generally the setup of a parking pawl pretty clearly-
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This post brought to you by Carl's Jr. |
#11
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Got a friend (ly shop) with a dino? You could put it on rollers & listen. Catch them on the weekend when they're playing.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do. |
#12
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Quote:
Definitely will have a look though. Thanks for the idea!
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Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (113k) 1991 350SD (206k) 1991 300D (228k) 1993 300SD (291k) 1993 300D 2.5T (338k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (265k) Past Diesels: 1983 300D (228K) 1985 300D (233K) |
#13
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Stone stuck in the tire or hub cap?? your description of the noise effectively eliminates anything in the drive train, leaving you with tires, wheels, brakes, hub and bearings...
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On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST 1983 300SD - 305000 1984 Toyota Landcruiser - 190000 1994 GMC Jimmy - 203000 https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif |
#14
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Quote:
says the noise is the same under load or coasting...
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On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST 1983 300SD - 305000 1984 Toyota Landcruiser - 190000 1994 GMC Jimmy - 203000 https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif |
#15
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so he did, sorry! so much for that theory
Look for tools as well stuck on a moving component, I found a screwdriver jammed in the caliper of a minivan several hundred miles after it had gone in for brake service. Complaint was "scraping noise". The handle was sanding against the rim
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This post brought to you by Carl's Jr. |
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