How to bleed a power steering pump on a 1990 1/2 ton gmc pickup
SOURCE: Power steering on a 1998 GMC 2500 Sierra pickup (7.4L)
have you tried bleeding the system with the engine running and turning full lock both ways? also inspect the belt make sure its tight enough
also make sure that you do not have a leak in one of the lines etc.
SOURCE: removal of power steering pump on 1998 GMC Sierra 1500
you need a power steering pump puller the rest is simple any trouble let me know
SOURCE: replace power steering pump
NOTE: The following procedure requires the use of the GM Puller tool No. J–29785–A (1985–92), Puller J–25034–B (1993–96) or equivalent, and the GM Pulley Installer tool No. J–25033–B or equivalent.
Fig. 3: Removing the power steering pump pulley — 1985–92 vehicles
Be sure to cap all openings in the pump hydraulic system to prevent excessive fluid spillage and the possibility of system contamination.
Email me at [email protected] for an engine picture breakdown.
SOURCE: 1990 GMC Sierra 1500 pickup. Windshield wipers, Cruise Control
May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.
SOURCE: LOW OIL PRESSURE ON 2007 GMC SIERRA 1500. CHANGED
have it tested using a manual gage if still low then main baring ore most likely bad that would mean a over hall if is really low and bearings bad should be making rattle noise when started up first few seconds
Testimonial: "thanks alot.truck is not making a rattling noise.we did check it with a manual gauge.it read about 10 at idol. press. gets better as you incr speed"
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