User Rank
Auto Body Drain Holes
Critic   7/22/2011 5:36:02 PM
I think it's safe to say that all production cars have body drain holes that require maintenance.  Typically the holes should be cleaned every 6 - 12 months, maybe even more frequently, depending on the amount of detritis that falls on the car.  Owner manual maintenance schedules that I have seen specify this cleaning operation and interval.

What happens if you don't clean the drain holes?  Flooding as described in this article, or corrosion of body panels such as door skins, fenders, and floor.  Carpeting and inner door panels can also be affected.  My F-150 often has a swimming pool in the bed (sometimes referred to as a redneck jacuzzi) after a rain storm because the bed drain holes easily clog.  Eventually the holes will rust, enlarging the openings so the bed drains more easily.

Rain drainage is not the only source or water problems with cars.  A 2000 Mustang I own had a design defect where condensate from the A/C evaporator dripped onto the exhaust pipe near the catalytic converter.  This eventually causes the pipe to crack and leak exhaust.  Ford's documented fix is to weld up the crack using a particular welding process and materials, which most repair shops would not have.  The pipe is stainless steel, so ordinary welding processes cannot be used with any degree of lasting success.  A new aftermarket catalytic converter assembly costs about $600.

Lauren Muskett
User Rank
Flawed Gutter
Lauren Muskett   6/27/2011 10:36:40 AM
My windshield gutter is slightly flawed as well. My 2008 Nissan windshield gutter was not installed as one piece and was instead installed as one long piece with two side corners. For some reason the one side corner has fell off so pollen has been collecting there and the rain water flows under the hood. I admit I feel lucky after reading this because I much rather clean out the gutter then have to deal with hot water leaking on my feet.

Rob Spiegel
User Rank
Why a Trough at All?
Rob Spiegel   6/24/2011 11:27:16 AM
I don't understand why this design was needed in the first place.

TJ McDermott
User Rank
Hot water
TJ McDermott   6/23/2011 10:12:38 PM
Hot-tubbing at 60mph!  It's a feature, not a flaw!

User Rank
Cars and water
Tim   6/23/2011 7:40:25 PM
I have a major aversion to water and vehicles.  My 02 Ford F150 has a problem with water leaking through the bottom of the windshield seal and into the power control module effectively shorting out a few of the relays.  The only solution is to pull the windshield and reseal.  Made by Monkeys

Partner Zone
Latest Analysis
Dow Chemical and several other companies have launched a program in Omaha, Neb. to divert about 36 tons of plastics from landfills in its first phase, and convert it into energy used for cement production.
Both traditional automation companies and startups are developing technologies to improve processes on the factory floor, while smart sensors and other IoT-related technologies are improving how products are handled during transport and across the supply chain.
Remote monitoring now looks beyond the individual motor or conveyor and instead views the process from end to end.
BASF is partnering with Hyundai on a high-performance concept car that showcases both eco-friendly, sustainable materials and materials to enable lighter weight cars.
In an move to ease the use of multiple product design tools, PLM provider Aras and EDM company Zuken have integrated their products.
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 10 - 14, Embedded System Design Techniques™: Getting Started Developing Professional Embedded Software
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course September 27-29:
Sponsored by 3M
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service