Cadillac Catera Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Cadillac Catera

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Cadillac Catera Problems

Check ECM sofware if you experience drivability issues

Various drivability issues and be addressed by updating the software in the engine control module (ECM).

Coolant loss and/or Engine Overheating Due to Leaking Water Control Valves

The hot water control valve may develop a coolant leak resulting in engine overheating. A leaking valve should be replaced.

Coolant and Oil Leaks

The Catera often experiences oil leaks from the oil cooler and/or valve cover gasket. The thermostat seal and/or the water pump may develop a coolant leak.

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Cadillac Catera Questions

How to fix P0335 and P0727 error codes for Cadillac Catera 2000? (1 answer)

I have a 2000 model Cadillac Catera with 3.0L engine. It shows error codes P0335 and P0727. I know little about cars. Please help me find out what is going on and how to fix it. I would appreciate if some once can help me out from this.

I need help replacing the thermostat (1 answer)

Where is the thermostat located on a 2000 Cadillac Catera? (1 answer)

Where is the thermostat located on a 2000 Cadillac Catera?

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Cadillac Catera Reviews

The Catera is a Vauxhall/Opel Omega built in Germany. Read the European reviews and you do not find the problems experienced on the Cadillac badged Omega's. Could it be that American mechanic's/technicians do not have the expertise to repair or maintain them?
I have a 1999 Cadillac Catera and when it rains my cars floor is soak and wet on the passenger side front and back. Does any one know where the rain is coming in? The car was in an accident and need lots of repair work.
I love this car, ride, comfort and handling, and I fix it on my own, I don't trust this car to anybody. I had 4 cateras, and 3 of 4 I got in horrible shape. People never took care before, drove till brakes down, and then it costs a lot to fix at the shop. My last one was taken care pretty good, a lot of things were replaced, even so, job was done not professionally, timing belt was installed in...

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