Question about 2003 Oldsmobile Alero
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Posted on Jan 02, 2017
ford uses vacuum operated valves to open and close the ducts in the heat- a/c box on most models... look under the dash on the right side (passenger) on the top of the heater/ blower case..there is a plastic connection that has about 5 or 6 color coded vacuum lines going to it i would check this to see if maybe it has worked loose! also follow the vacuum lines back to the engine bay to see whether any of those have come loose...
Posted on Oct 29, 2008
There are 2 fuel lines connecting to the fuel injector rail. The larger line is the pressure line and the smaller line is the return line. The smaller line attaches to the fuel pressure regulator. You will notice that the regulator also has a vacuum line attached to it. If you are planning on changing it your self, let me know. There is a specific way to change it for safety reasons.
Let me know.
Posted on Mar 10, 2009
cant help with this one because i have never seen one here in spain,but look for engine oil dipstick first then the auto is often close by ,but some cars dont have one its done from underneath
Posted on Mar 16, 2009
You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....
Posted on Aug 27, 2009
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