Question about 1997 Cadillac Catera

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I have a 1997 catera and when i start it sometimes there is a loud noise that sounds like a vacuum coming from the front but it doesnt seem to be coming from the engine what could this be?

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  • Cadillac Master
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That noise is the electric air pump the location is not in the engine compartment but in the front under the bumper this only operate for 1 minute on cold start the purpose is to warm up the catalytic convertor this is a emission device.If the car is already warmed up and you turn off the vehicle and restart it wont come on.Its only for cold start ups.

Posted on Feb 24, 2012

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Posted on Jan 02, 2017

  • 231 Answers

SOURCE: cadillac catera

Check your fuses, also I'm nt sure if there is no spark at all or just not at the engine so I will suggest scecking to see if there is spark at the coil, if not check to see if the cil is getting power. if there is spark at the coil then check the lead wire. If no spark at coil but power to coil then it's time for a coil. Good luck and remember to rate all solutions you get, thanx.

Posted on Oct 29, 2008

  • 113 Answers

SOURCE: my '99 catera speedometer doesnt work and the

You need to replace the traction control module located on the ABS pump. There are places in the US where they will rebuild it for you with warranty for about $150.
Its tricky to get off (you need to remove the rad hose between the battery and the pump to get to it, but don't disconnect the ABS module, just the TC module mounted at end of the ABS unit (has a bunch of brake lines coming out if it).

The power steering is variable assist, relative to the speed of the vehicle, so if the speedo doesn't work, then the PS won't and you should have TC and ABS lights on. The electrical connectors to the module are tricky to remove. don't force them. One connector has a sliding lock bar.

Posted on Jul 25, 2010

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