clear water leaking inside cab, drivers side, getting floor wet

flattire

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#1
Make
Chevy
Model
pickup
Year
2000
Miles
180k
Engine
5.4
2000 chevy silverado 3/4 ton pickup. 180k. Clear water is coming from above gas pedal and brake pedal area. Does this truck have weep holes that may be clogged? If so where are they located? This happens with no AC or defroster running, just vent air . Any help appreciated. Thanks
 
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#2
Does it happen when it rains? Does it happen when it is parked (not driven within the last hour)? Does it happen if the blower has not been turned on? Any kind of slosh sound when first driven after being parked in the rain?
Any kind of "clogged weep holes" would probably be in the wiper linkage cavity.
 
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#3
Ha, this problem started in the 50's by adding that fresh air intake grille under the windshield, debris also gets in there. Depends upon the size of the openings, some have screens, other don't, most may have side openings in that windshield cavity in case the grille is covered with ice and snow. Mice have been known to get in. On some, had to add screens to keep these critters out, call this post production work. Motorhomes and camping trailers really a pain, have to add screens everywhere, many places left open for them to get in, including wasps.

Have to remove the windshield wipers and grille, than look in, yes water can get in there and can have a plugged drain. Use to have rusty screws, most of the new stuff is using these plastic push pin rivets.

Sure took the industry long enough to add a cabin filter, called the blower motor a leaf chopper and the evaporator the filter. That would pile up with debris and also block those drains.

Not exactly a new problem.
 
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#4
Ha, another 100 year old problem are radiators augmented by putting a condenser in front of it, they really function as bug collectors and really a PITA to clean. Compounded with R-134a whose pressures rise at an exponential rate compared to R-12 putting severe stress on your single drive belt system, water pump is the weak link, sees the same stress as the compressor, and with an aluminum head, they crack.

Should advertise, if you want problems, we have problems.
 

flattire

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#5
Does it happen when it rains? Does it happen when it is parked (not driven within the last hour)? Does it happen if the blower has not been turned on? Any kind of slosh sound when first driven after being parked in the rain?
Any kind of "clogged weep holes" would probably be in the wiper linkage cavity.
Thanks, it does seem to happen more when it rains.
 

jd

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#7
When it rains? When you wash it? Bear in mind that if condensate water built up from running the A/C, it'll hang around till drained out.

We had an older, different, GM vehicle with water dripping in. Turned out that over the years, dirt and decayed leaves had built up in the cowling air plenum under the wipers. Rain water was being diverted in a way that it came into the interior. Cleaning solved it.
 
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#8
Other little minor problems, blower motor wheel can be seen from that cavity, if water gets in there, freezes, cage is stalled, switching it on can blow an overpriced solid state module or the blower resistors.

Happened to my 92 DeVille when I had to leave it outside, instead of blowing that 30 fuse, blew and shorted a 17 cent power MOSFET transistor so the blower ran all the time, Caddy wanted something like 250 bucks for a new module, just replaced that transistor, and was also time to clean up that cavity.

Also happened to my son's Taurus 12 bucks wasn't bad for a new resistor, but the blower would not work, commutators on this new crap are foil thick, can't clean these anymore, had to buy a new blower motor. Those screws holding the grille on, plus removing rusted on wiper blades was not easy.

On some vehicles glued on rain gutter plastic grid to keep the large stuff out.