Windshiel Washer Fluid Pump

[Icey1174]

Is there a way to test the windshield washer pump to be sure I do not have a wiring problem before I replace it? It used to work. All the fuses are good and it has fluid in the tank.

[Thunder-71]

Originally Posted by Icey1174

Is there a way to test the windshield washer pump to be sure I do not have a wiring problem before I replace it? It used to work. All the fuses are good and it has fluid in the tank.

Disconnect the wires, then run a wire from the possitive terminal of the battery to the power feed prong of the pump and another wire from the negative terminal of the battery to the ground prong of the pump or touch it to the pump housing. If the pump is good it will run. Quite often is poor wire contact so clean your wiring terminals and the pump prongs. Also a simple power tester will show you if you have power at the wires. Good luck.
PS: I am located in Grand Island N.Y.

[Icey1174]

Thanks for the info. I was outside taking it apart when you responded. The pump is working. I am guessing that over the years the PO let it dry up and it has some junk floating in the tank. The tank does not look real easy to get out. Looks like it is buried under the head light assembly.

I took the pump out, ran it dry, cleaned the hoses to and from the tank and let it ran out on the ground in the front of the car. It had a strong, steady stream disconnected. When I connect it I get nothing. I am guessing there may be some of this junk clogged up at hood where it sprays.

Porsche put some pretty heavy hose clamps on these hoses. Is there an easy way to get them off without breaking the plastic connectors they fit on? I would like to try to clean out the system to the hood and eliminate the problem one step at a time.

Any ideas?

We should get together one day. I have a pretty open schedule.

[Thunder-71]

[QUOTE=Icey1174;4828087]Thanks for the info. I was outside taking it apart when you responded. The pump is working. I am guessing that over the years the PO let it dry up and it has some junk floating in the tank. The tank does not look real easy to get out. Looks like it is buried under the head light assembly.

I took the pump out, ran it dry, cleaned the hoses to and from the tank and let it ran out on the ground in the front of the car. It had a strong, steady stream disconnected. When I connect it I get nothing. I am guessing there may be some of this junk clogged up at hood where it sprays.

Porsche put some pretty heavy hose clamps on these hoses. Is there an easy way to get them off without breaking the plastic connectors they fit on? I would like to try to clean out the system to the hood and eliminate the problem one step at a time.

Any ideas?

We should get together one day. I have a pretty open schedule.[/QUOT Sounds like your squirters are pluged up. Have no idea how to get them off, just be carefull. Yes we should get together some day. Weekends are best for me. If you are going to any cruise nights we could meet there. I am an American Muscle car guy (have three of them) and new to Porsches but I like them and would like to learn about them. I have a 1984 944 N/A.

[Turbo_ZA]

I have had the situation where a pump worked intermittently, replacing it solved the problem.
In testing it always worked.
I replaced all the pipes with appropriate diameter transparent reinforced hose while I was about it. I habitually replace hoses and cables on all my cars and bikes if more than 5 years old.
If you disconnect the T-piece closest to each nozzle and just blow through it, it should dislodge any dirt.

[Icey1174]

I disconnected the hose at the "T" and blew threw to the squirters on the hood and I could not blow at all. I am going to assume that there is some blockage in there. I will replace the hoses, great idea! Now how do I get the over kill metal hose clamps off without breaking anything?

[Turbo_ZA]

Cut those suckers off with a small hacksaw or similar and use ordinary screw type hose clamps.
Since you are replacing the hoses, cut off on either side of the t-pieces (which I assume is what you want to save), put in a vice so you can cut carefully without risking unwanted damage.
You may want to try the old sewing needle stuck into the squirters from the outside trick to clear the blockages.