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Where is the low pressure port for the a/c on a 1990 Cadillac seville

After a down period in the mid '80's, the Cadillac Seville luxury midsize sedan continued its comeback with an upgraded engine and sleeker styling to kick off the new decade. The 4.5 L V8 engine now boasted 180 hp and came with 4 speed automatic. The new model also used sequential fuel injection for improved power and emissions. The 1990 Seville has two trims: the STS and STD. The STS represented Cadillac's attempt to make the Seville appeal to a younger crowd with a sportier exterior, better handling, and faster acceleration. Gas consumption runs from 16 mpg in the city to 25 mpg on the highway. The Seville seats 5 and has 4 doors. Standard features include air conditioning, power windows, and power door locks. If you want, you can also get a sunroof, leather seats, and ABS brakes. Overall, drivers still enjoy their 1990 Sevilles. Several devoted owners report putting over 200,000 miles on their car with almost no major problems. If you don't need the most advanced features, the 1990 Cadillac Seville still provides plenty of bang for your buck.
Where is the low pressure port for the a/c on a 1990 Cadillac seville
my husband had recently replaced the alternator and belt on our 1990 Cadillac Seville. Now when you start the car it squeals and when you start to drive it. He said it maybe has to do with Catalytic converter cover or something like that. Do you think that it is correct and is it easy to fix?
These details are regarding a 1989 Cadillac Seville w/4.5L V-8. There are no noticeable signs of leakage from above the flywheel housing as viewed from the engine compartment. From underneath the car, the coolant runs profusely from the rear(closest to firewall)section of motor on the drivers side. I removed the 'bell housing' inspection cover exposing the lower portion of torque converter, hoping to see area near rear main seal. However, components are assembled so closely resulting in almost no visibility which prevents locating the origin of leak. Does the freeze plug directly to rear end of camshaft have exposure to the cooling system? I've searched for a 'schematic' for cooling system but am unable to find technical description. Thanx, Marty
Air Conditioning
Automatic climate control front air conditioning
Airbags
Driver side front airbags
Audio System
Antenna Type: power · Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Steering wheel: tilt-adjustable
Exterior Features
Paint: two-tone
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated · Inside rearview mirror: electrochromic
Roof
Moonroof: power
Seats
Front seat type: bucket · Upholstery: cloth
Suspension
Air Suspension: rear · Leveling: self leveling suspension
Tires and Rims
Wheel covers: wire · Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning
Airbags
Driver side front airbags
Audio System
Antenna Type: power · Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Steering wheel: tilt-adjustable
Exterior Features
Paint: special factory paint
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated · Inside rearview mirror: electrochromic
Roof
Moonroof: power
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Air Suspension: rear · Leveling: self leveling suspension
Tires and Rims
Wheel type: aluminum alloy