Question about 1998 Cadillac Catera

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Catera 1998 a/c starts off with cool air and then gets warmer

Have had the a/c system evacuated several times. New compressor, expansion valve, dryer, hose repair (leaked), high-side schrader valve, system flushed (claims from repair shop). No leaks. Spent $1000.

Start in morning, a/c temp ~60*. As a/c is used, warms up to a/c temp ~70* within ~30-45 min. On hot day (~90* outside) system is quite useless. Is there any solution except junking car (used in Florida)?

Back at repair shop, now they claim that they need to replace evaporator.

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  • yadayada
    yadayada May 11, 2010

    I need to know what the system pressures are and please supply the outside temperature with those pressure readings, off hand it sounds like u have a low charge.

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I would have the dealer evaluate whether the radiator flaps and shrouds are all in place. Especially in Fla climate it is extremely important that the A/C condenser ( front of radiator ) stay at an appropriate temp. Of course that is not to say the EVAPORATOR doesn't have any faults. Hope this helps.

Posted on May 12, 2009

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