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2006 Cadillac STS white smoke and engine shake

My 2006 Cadillac STS start to have white smoke and engine shake badly, and it seems to lose a lote of power while driving was fine this morning, never did that before, also engine light comes and stay on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Ajkill
  • 2035 Answers

SOURCE: losing coolant

Please check the radiator it may be leaking or there may be hole in the coolant container or the sensor is defective get it checked ..................................

Posted on May 27, 2008

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bigg t
  • 640 Answers

SOURCE: overheating bigtime

did you check the oil?does it look milky?

Posted on May 28, 2008

  • 740 Answers

SOURCE: 97 cad sls white smoke near windshield smell like rubber burning

If its in the engine compartment there is an antifreeze leak..If it inside the car like like near to the windshield, you have a bad heater core. Good Luck contact me if you need more help.

Posted on Dec 28, 2008

  • 142 Answers

SOURCE: WHITE SMOKING & LEAKING COMING FROM EXHAUST ON 94 CADILLAC STS

Yes, unfortunately it sounds like you have a blown head gasket. You can check your oil dipstick to see if there is any water in the oil and also check your coolant to see if there is any oil in the coolant. If so then you have a blown head gasket. The problem can only be resolved by having the heads machined and replacing the gaskets.
Please rate me and let me know if this helped.

Posted on Feb 11, 2009

  • 1 Answer

SOURCE: abs light/traction control light

You can check out what the trouble code is by pushing and holding the information button and the up arrow (right side of instrument cluster above the radio) until all the instrument clusters light. Press the information button (last) to enter test mode. I've had an error C1234, meaning Left rear wheel sensor fault. I found the problem to be a corroded connector under the chasis just under the rear left door about 2 feet in. I had to by-pass (replace 1 wire due to corrosion at the connector.

Posted on Sep 15, 2009

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2 Answers

Does it have a ignition relay switch?


Nicole, I google it and the 06 Cadillac STS does appear to have a ignition relay. It will most likely be found in the engine compartment fuse/relay box. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.rockauto.com/en/catalog/cadillac,2006,sts,4.6l+v8,1432044,electrical-switch+&+relay,ignition+relay,3480
2006 Cadillac STS ignition relay Google Search

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Jan 11, 2016 | Cadillac Cars & Trucks

1 Answer

2006 Cadillac STS Cranks but no start Had the whole car rewired and still no start. Dealer said that there is not enough compression from engine.Don't have the money for a new engine. Any advice???


There are several things to look at and check for a no start situation. Did the dealer diagnose the wiring? to replace all of it? I would think that if all the wiring had to be replaced, it would have taken out some computers also. You have many on this car. If you don't have compression, it cold be timing. If the timing is good, then the rings are bad. This would cause major oil leaks. I would do my own compression test and check the timing belt/chain.

Apr 17, 2015 | 2006 Cadillac STS

1 Answer

I have a 2005 cadillac STS. 87,000 miles. It smokes out of the tail pipe when car is sitting still. The smoke is white. I just had an oil change yesterday. My car says that i should check the coolant....My...


Start by getting the codes from the computer. Once you have that, then start tackling the problem. White smoke is usually burning coolant. This is typical of a bad gasket (lower intake or head gasket) If it's cold you will see a little bit of smoke. Does it idle poorly or have a hard time accelerating?

Dec 10, 2013 | 2005 Cadillac STS

1 Answer

2006 Cadillac sts p0451


PO 451 Evap System Pressure Sensor

Could be a bad sensor or other issue

Have a repair shop smoke test it,actuate
the sensor & see if it is working

A scan tool will also be needed to look at the
sensors data output

Jan 08, 2013 | 2007 Cadillac CTS 3.6L

1 Answer

White smoke coming out of the bottom of the engine and tail pipe fan off got fan to come on 92 sts cadillac sevill


Have a pressure test done on cooling system,may have crack in head or engine block, or head gasket leak.

Feb 11, 2010 | 1992 Cadillac Seville

1 Answer

Car won't start


Sounds like it is burning coolant, possible blown head gasket or cracked head or intake leak.

If too much coolant enters the cylinder it will stop the engine from running.

Sep 29, 2009 | 1999 Cadillac Seville

2 Answers

White smoke coming from exhaust, smells like gas


Check the fuel pressure regulator. It should have a vacuum line attached to it - disconnect the vacuum line and turn the ignition on - if fuel come out then that's your problem. DON"T do this while the engine is hot or you could start a fire!

Jan 01, 2009 | 1996 Cadillac Seville CA Value

2 Answers

Losing coolant


Please check the radiator it may be leaking or there may be hole in the coolant container or the sensor is defective get it checked ..................................

May 27, 2008 | 1998 Cadillac Seville

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