Trick to rethreading power pressure line on Pontiac Aztec

Could be a bad fuel injector.

Diagram? For what? There are only two hoses. Pressure and return.

The first thing you need to do is check fuel pressure when it will not start and also check for computer control system fault codes.

The only squared thing on the pump is the "plastic"
fluid tank... Everything else about the design & function
is "circular".

There is ABSOLUTELY circular "MOTION" inside the PUMP...
PLEASE NOTE... there is a giant pulley on the front..
and the design of the pump is all about rotational force of the hydraulic pump (right THROUGH the middle).

High pressure to the high pressure...
(with a possible cooler option in the middle)
Low pressure back to the reservoir

See images at: 2001 aztek power steering lines Bing images

https://www.bing.com/images/search?q=2001+aztek+power+steering+lines&qpvt=2001+aztec+power+steering+lines&qpvt=2001+aztec+power+steering+lines&qpvt=2001+aztec+power+steering+lines&FORM=IGRE

(at the very bottom)

Optional cooler:
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Return
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Pressure line (62 inches)
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Power Steering Pump Reservoir A1 CARDONE Reman 2001

2001 aztek power steering lines Bing images

first find and fix the leak in the system or you will be wasting gas
gas is added via the suction line point at the compressor and is added until a set pressure is achieved in the system
really it works out to be cheaper to have an accredited ac specialist shop do the job

go to your dealer airbags can be dangerous

Aztec was derived from the line of GM minivans. Many mechanical parts are interchangeable with Pontiac Montana, Chevy Venture and Olds Silhouette of that vintage. Obviously the sheetmetal is, I would say, unique.

under the hood , under the dash are the most obvious ones.
Open the hood and look around for small black hoses... they will ultimately lead to the intake of the engine (where vacuum is created)

well once a year should be ok

grab hold of the upper radiator hose, and follow it back to the engine block. The housing the hose is attatched is where the thermostat is hiding :)