more abs symptoms

anlo

Registered User
after reading the numerous posts on the 90 abs problems ive learned alot . but heres where i am. new relays (both). but pump wont run by itself , i can manually start pump by closing contacts on the abs relay ,pump runs as long as i hold contacts closed. brake light goes out and i have brakes.after a few pumps on brake pedal brake light comes back on and brakes harden up. also abs light stays on all the time.fuses are good. ?? i would like to confirm if its the accumulator or pressure switch? at least pump motor is operational. when i ground pin 4 to chassis nothing happens , when i jump pin 3 to 4 pump runs as long as i have it jumped. any input would be appreciated. as i said alot of this has been covered but alittle different than my particular situation.. thanks :confused:
 
abs light

well after replacing accum and pressure switch. things are looking positive.pump now cycles on its own . as usual .. after 7 brake pumps brake light comes on until accum. pressures up then brake light goes out. why would a b s light stay on all the time??? im hoping someone tells me after i bleed the system things will be fine???? thanks larry
 
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