How long should car AC system hold vacuum?

How long should car AC system hold vacuum?

How much vacuum should an AC system hold? A vacuum of about 500 microns or 29.92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non-condensable gases while it was open. The automotive A/C system must hold the vacuum of 29.92 in Hg for at least 1 minute.

How to troubleshoot the air conditioning in a Pontiac Grand Prix?

See if the problem is as simple as a blown fuse. It is probably a blown fuse if the temperature controls on the dashboard seem to work correctly but have no effect on the air. Find the fuse box in a Pontiac Grand Prix inside the glove box.

What are the features of a Pontiac Grand Prix?

The center console-mounted transmission shifter included a storage compartment and a tachometer. The rear bench seat included a center fold-down armrest and a speaker grille that could be made functional with the extra-cost Bi-Phonic rear speaker. Included were a padded instrument panel, deluxe steering wheel, courtesy lights, and other features.

When was the last year for the Pontiac Grand Prix?

2008. 2008 was the Pontiac Grand Prix’s last year as the sedan. For 2008, Pontiac did not offer the GT trim, but continued to offer both a base and GXP trim. The base trim is offered with a 200 hp (150 kW) V6 engine and 16 in (41 cm) wheels. Several new colors were also added for the 2008 model year.

Who was the general manager of Pontiac in 1969?

Pontiac’s general manager John Z. DeLorean ordered the development of an all-new Grand Prix for the 1969 model year. It featured dramatic bodywork and a highly pronounced grill, and rode on a slightly stretched version of the intermediate GM A platform dubbed the G-Body .

What was the performance of the 1973 Pontiac Grand Prix?

1973 Pontiac Grand Prix All A-bodies, including the Grand Prix, were redesigned for 1973. This generation was larger and heavier, due partly to the federally mandated 5 mph (8.0 km/h) crash bumpers. Although large V8s were still available, the performance was on the decline due to new emissions control systems.

What kind of power does a Pontiac Grand Prix have?

The standard 350 hp (260 kW) 400 cu in (6.6 L) V8 was revised to meet the new 1968 Federal and California emission regulations. Both optional 428 cu in (7.0 L) V8s received higher power ratings of 375 hp (280 kW) for the base version and 390 hp (290 kW) the HO. Interior trim only received minor changes from 1967 aside from revised door panels.

2008. 2008 was the Pontiac Grand Prix’s last year as the sedan. For 2008, Pontiac did not offer the GT trim, but continued to offer both a base and GXP trim. The base trim is offered with a 200 hp (150 kW) V6 engine and 16 in (41 cm) wheels. Several new colors were also added for the 2008 model year.

What was the front bumper on a 1974 Pontiac Grand Prix?

The 1974 Grand Prix received a revised split grille with vertical bars that was entirely above the bumper. Out back, the boattail effect was softened somewhat due to a new federally mandated 5 mph (8.0 km/h) bumper that was added to the similar mandated front bumper introduced in 1973.