How to fix code P0603 code on 1996 cadillac eldorado

SOURCE: can i reset my ac code? 1999 cadillac eldorado

Hi, follow this step for clear the a/c codes on your cadillac el dorado 1999.
I Hope you will solve your problem with this instruction page, thanks for using fixya.

SOURCE: 1999 cadillac eldorado

Just follow the Upper Radiator Hose to the Block. The Hose will attach to a Bell housing on the Manifold. Remove this Bellhousing and the Hose. The Thermostat is Right underneath the Bell Housing. Reinstall the Same way that the Old one is sitting when you find it or it will not work Properly.

Bruce Bracey

• 1000 Answers
• Posted on Feb 24, 2009

SOURCE: 1995 cadillac eldorado revs up by it self

CSP, It sounds like you have a vacuum leak that is causing the IAC ( idle air control ) motor to move in and out trying to control the idle. Check all vacuum hoses on the engine for disconnect, cracked or damaged. If the hoses crack when you bend them, they need to be replaced.
Let me know what you find and we can go from there.
Regards,

Bruce Bracey

• 1000 Answers
• Posted on Mar 04, 2009

SOURCE: leaking engine coolant from bottom of engine front passenger side

Probably a water pump seal unfortunately. Pressurize the system, with the engine off, use a mirror to look under the water pump pulley to see if any fluid is dripping from the water pump seal weep hole.
If it is, change the water pump.
Good luck, let me know.
Regards,

SOURCE: 95 cadillac eldorado engine stalls rough idle check engine light is on

My son has this same car with the same problem. So far after tune up and other process of illimination, the problem points to the catalytic converter. If it is clogged you will get this problem with the rough idle and stalling. Look under the car at night after running it and see if the catalytic glows red. If so you need a new one. Hope this helps.