FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
|||
|
|||
wiper squirting wont shut off
when i turn my wiper switch on the squiters wont shut off on my 72 formula .it was fine before a parked the car for the winter , tried another switch and the wiper motor and pump are new
|
#2
|
|||
|
|||
Tried another switch same issue
|
#3
|
||||
|
||||
Stuck pump 🤔
__________________
🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes F ire B irds 🇮🇱 |
#4
|
|||
|
|||
I will disconnect and see what happens thanks for your reply
|
#5
|
||||
|
||||
The pump is activated by a metal arm that engages in the nylon gear under the pump housing. A broken nylon cam gear, or stiff dried up grease, spring coming off the arm, will make it malfunction, and not stop running the pump. There are a lot of small parts under that cover, many made from nylon that used to break even when the cars were under 10 years old. From your description it sound like the white cogged gear may have broken off one of the pawls that stop it after one cycle. The gear is about an inch in diameter, and last I knew wasn't available seperately.
Back when these cars were used daily drivers, repairing the pumps, and the mechanism that drives them was fairly expensive. Even after spending a good sum of money on the repairs, they sometimes still failed to work as they were designed. The aftermarket sold washer pumps that retrofitted the troublesome GM design, and were installed inline in the washer hose. They didn't run a full cycle and empty the washer reservoir prematurely, they only ran while the washer button was depressed. GM defaulted eventually to this style of pump after decades of using the failure prone design. It cost about 1/2 as much to buy the aftermarket pump as the GM style did. If your car is a judged original show car then you might want to refurbish the OEM pump. If it's a driver you might want to consider the rotary aftermarket style. |
#6
|
|||
|
|||
Quote:
|
#7
|
|||
|
|||
Add a pic
|
#8
|
||||
|
||||
as mentioned it's not the switch;
It's the pump on your firewall. Unplug the power to your pump on the firewall and it will stop squirting. If your car is a non-recessed wiper car, the pump is shared between older trucks. I had this exact issue when I daily drove my car.
__________________
1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#9
|
|||
|
|||
Quote:
|
Reply |
Thread Tools | |
Display Modes | |
|
|