Front or rear?
you need a new brake booster
where is the starter relay located on a 1990 Lincoln mark 7
Could be a partly frozen caliber.
The Lincoln mark VII club .org is a good place to start
right above the brake pedal on the left
Under the dash by the emergency brake
There is only one ABS brake pump motor recommended for the 1990 Lincoln Mark VII. The ABS pump is manufactured by three different companies.
Under the hood, driver's side attached to the firewall
bad master cylinder
cruise control switch
And what about it do you need one ? selling one ? Fixing one?