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1977 D200 Pickup - water leaking in cab - please chime in! #1931400
10/13/15 02:14 PM
10/13/15 02:14 PM
Joined: Aug 2003
Posts: 123
Chicago, Illinois
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Dale440rt Offline OP
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Dale440rt  Offline OP
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Posts: 123
Chicago, Illinois
Hi everyone,
I recently pulled up the floor matting and on the passenger side, the juke padding was soaking wet. It is not anti-freeze, so I am wondering where I should look for this leak. I also don't believe it is coming from the passenger side door either. I was told water leakage is a common problem on these trucks!If you have some experience with this problem, I would love to hear from you!

Thanks Dale

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1931685
10/13/15 10:09 PM
10/13/15 10:09 PM
Joined: Jan 2003
Posts: 32,884
Grand Prairie,Texas
stumpy Offline
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stumpy  Offline
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Grand Prairie,Texas
Check the area between the windshield and top. Make sure the cowl drains aren't plugged.

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1931852
10/14/15 02:17 AM
10/14/15 02:17 AM
Joined: Sep 2003
Posts: 7,828
east side of Ohio
basketcase Offline
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east side of Ohio
windshield gasket, vent windows,


Dave


1981 Dodge D150 360 auto
Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: basketcase] #1931865
10/14/15 02:55 AM
10/14/15 02:55 AM
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi Offline
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Chicago Burbs
Store it in a GARAGE !

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1931926
10/14/15 11:22 AM
10/14/15 11:22 AM
Joined: Feb 2003
Posts: 10,178
Someplace you aren't
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SomeCarGuy Offline
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Someplace you aren't
Wiper pivots too


I want my fair share
Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1932346
10/14/15 11:29 PM
10/14/15 11:29 PM
Joined: Jan 2003
Posts: 10,486
Freeport IL USA
poorboy Offline
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Freeport IL USA
A 70s truck in the Midwest rust belt? Any seal along the firewall, cowl, roof, and vent boxes and any where 2 pieces of metal are spot welded together. Really!
Also around any and all of the glass, and door seals and where any wires, hoses or fittings enter the cab!

They were not very water tight back in the 70s, now they have had 40 or more years to deteriorate. Besides looking for where the water is coming in, you also want to be sure all the body drains are open so that whatever gets in can get back out. Besides the heater/AC box drains, there are body drains at the bottom of the cowl, bottom of the fenders, bottom of the doors, and bottom of the rockers, (I'm sure I'm missing someplace else). Open them up with a piece of wire.
Good luck. Gene

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1932398
10/15/15 12:57 AM
10/15/15 12:57 AM
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Posts: 206
foristell mo
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serano Offline
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foristell mo
There are two spots on either side of the truck at the cowl area where body putty has been applied. Normally the problem is the seam that starts at the corner of the windshield and goes down into the firewall. I have seen the seam sealer at the roof rail crack and leak all the way down through the windshield buck and into the floor.

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: Dale440rt] #1932463
10/15/15 06:02 AM
10/15/15 06:02 AM
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Back home in PA
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BulletBob Offline
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Pull the glovebox & instrument cluster out & look for the rusty water trail

Re: 1977 D200 Pickup - water leaking in cab - please chime in! [Re: serano] #1932581
10/15/15 01:30 PM
10/15/15 01:30 PM
Joined: Oct 2003
Posts: 2,537
PORT ALBERNI , BC., CANADA
superwrench Offline
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PORT ALBERNI , BC., CANADA
Originally Posted By serano
There are two spots on either side of the truck at the cowl area where body putty has been applied. Normally the problem is the seam that starts at the corner of the windshield and goes down into the firewall. I have seen the seam sealer at the roof rail crack and leak all the way down through the windshield buck and into the floor.


Exactly this.....That seam at the lower corner of the w/shield has been known to crack completely down to the pillar...especially on 4 wheel drives that see a bit of body twisting. ALL my '74 to '80 trucks I owned had cracked and ALL had water leaks onto the floor. You might have to pull back the fender at the top and re-weld the seam and caulk it.







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