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  #1  
Old 01-28-2009, 03:39 PM
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saverio saverio is offline
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Unhappy windshield wiper operation

When I turn on my wipers,they go half way up my windshield and then stop.I am guessing the motor works and so does the belt drive. I am guessing it is a huge vacuum leak. If i am correct,can anyone give me some hints as to where to look?
thanks Guys,

Sal
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  #2  
Old 01-28-2009, 05:17 PM
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YellowRose YellowRose is offline
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Default windshield wiper operation

Hi Sal!

That sounds like what I ran into with my windshield wipers when I bought my Tbird. there are several things to check. Check/replace the hoses coming out of the top of the fuel pump, going to the windshield wiper motor. You have to take out the glove box to get to the motor and the ends of the hoses. They could be worn, torn, broken or just plain shot. Another thing to consider is that the fuel pump has a leather diaphragm in it. If it is the original fuel pump that might have dried out, cracked or broken, causing loss of vacuum. I replaced mine with an exact replacement from Bird Nest. We also replaced the hoses, and the windshield motor, which also has a leather diaphragm in it. So, essentially, I have a whole new windshield wiper system and it works great now. I also replaced the cable from the windshield motor to the control knob on the dash because you just could not turn it on while driving without having to worry about crashing the car! That took care of that problem.

I also gained increased pressure out of my fuel pump to the carb by replacing that fuel pump. That fuel pump probably had a torn diaphragm in it also. Maybe I should have put an electric windshield motor in instead of an original replacement, but I am trying to keep the Bird as original as I can.

Hope this helps. I think I would start by checking hoses and replacing them if necessary. Especially, if they are the original hoses. Then you might want to consider replacing the wiper motor, if that does not fix the problem. Vacuum or electric, your choice. You will probably get better service out of an electric one.. If that does not fix the problem, then it might be time to replace the fuel pump with another just like it, with the vacuum hose connections on top. Or you could start with the fuel pump first which might save you from having to tear into the glove compartment to work on the wiper motor and hoses. It could be the fuel pump causing the problem.
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Last edited by YellowRose : 01-28-2009 at 05:22 PM. Reason: Spelling
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  #3  
Old 01-29-2009, 06:10 AM
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GOOD ADVICE!

One can also trace vacuum problems with a vacuum gauge. Takes a whole lot of guessing out of it. The vacuum pump on the fuel pump (dual-action) is to cut in when manifold vacuum falls off.
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  #4  
Old 01-29-2009, 01:55 PM
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saverio saverio is offline
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Smile Wiper Woes

Thanks Guys,
I knew I could depend on good advice from our team

sal
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60 T BD

Thunderbird Registry # 33126 - VTCI # 11138- CTCI #02521
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