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I have a 2005 Cadillac deville and the engine started making a knocking noise out of nowhere. The car ran perfect before I shut it off and when I went to start it again that's how it ran and was wondering y

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  • Contributor
  • 27 Answers

Make sure that the bolts on top of the front shocks are done up tightly. (bolts are under hood)

Posted on Jul 19, 2013

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Posted on Jan 02, 2017

emissionwiz
  • 75807 Answers

SOURCE: 2001 Cadillac Deville; noise after the engine starts

The whine sounds like the power steering or the alternator, as far as the idle issue goes try this clean the intake throttle body and idle speed control valve with carb spray, disconnect battery for 5 min. then reconnect and drive a few miles to reset idle strategy. The car will try to die when you spray the intake, hold the idle up to prevent that, use at least 1/2 the can of carb spray.

Posted on Aug 04, 2008

GM Elec
  • 1000 Answers

SOURCE: 1995 cadillac deville "won't start"

When you disconnect a spark plug wire, do you get spark when you crank the engine over?
If so,
When you turn the key to the "run" position (do not crank) do you here the fuel pump run for 2 - 3 seconds?
Let me know.
Regards,

Posted on Mar 27, 2009

martin538
  • 117 Answers

SOURCE: motor knocks when first started

It sounds like the lifters are draining down over night. When was the last time you changed the oil? A fresh oil change may do the trick, if not try some hydraulic lifter additive ( you just add to the engine oil)

Posted on Apr 08, 2009

  • 7 Answers

SOURCE: 2005 DB9 / crank no start

pull out negative terminal battery located under rear right seat.wait for 5 min n then install again the lead negative terminal.insert the key to ignition cylinder.turn the key on off three times.now start the engine.make sure u use recommended fuel grade.

Posted on Jun 21, 2009

  • 37 Answers

SOURCE: 94 cadillac sedan deville

Disttributor is bad had same promblem..........

Posted on Jun 26, 2009

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1 Answer

Where do I find the knock sensor on a 1994 cadillac deville 4.9 engine?


Knock sensor is on the right (passenger) end of the engine, and will activate if at least one of the cylinders is misfiring. Your rough running engine can be caused by many many issues - I suggest you start with plugs and plug wires.

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My 1997 cadillac deville, northstar w/85, regular oil changes, burns almost 2 quarts of oil every change. It is not leaking.


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Best thing to do is use a HEAVIER WEIGHT oil than specified for the vehicle when new, regularly monitor your oil level and be sure it never falls below one quart low, and consider having the engine overhauled when you start noticing a performance deficit or hear mechanical noise (such as rod knock) from the engine.

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My 99 deville d'elegance overnight starts up fine with 14.2V but as it warms up, the volts start dropping to 12.5V...when i turn off radio and AC it jumps up to about 13V. I replaced battery,...


After starting the vehicle, look at the volt (alternator) gauge while one at a time shutting the radio and A/C off. As the grounded or shorted load is removed, the voltage should restore and show on the gauge.

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1 Answer

Deville 2005 quit runnung like shut key off wont start but turns over like no gas getting to engine checked all fuses but all good


chk fuel pump, chk fuel filter, if it was ran with less then half a tank dirt can clog the filter, or burn out the pump, some were ur car is not get fule to the right places.

Mar 29, 2013 | 2005 Cadillac Deville

1 Answer

I have a knocking in my passanger side tire when i turn if i turn slowly it does not make the noise what could this be ??


It could be a hub bearing, or CV joint in the axle, or a faulty tire.
You could move the tire to a different position and see if the noise moves with it.
Usually a hub bearing will make a roaring sound not a bump or knock, the CV joint can clunk as the axle turns.

Feb 07, 2013 | 1988 Cadillac Sedan DeVille

1 Answer

The engine makes a knocking noise.


Mke sure you check the engine oil. It most likely the noise is coming from the lefters. Let me know if you have this problem when the engine wormed up?. Let me know

Oct 04, 2009 | 2000 Cadillac DeVille

2 Answers

1999 Cadillac Deville Transmission rattling


have ypu checked the fluid level in it? if the fluid level is good, you might want to replace the fluids in it

Jun 02, 2009 | 1994 Cadillac DeVille

2 Answers

Motor knocks when first started


It sounds like the lifters are draining down over night. When was the last time you changed the oil? A fresh oil change may do the trick, if not try some hydraulic lifter additive ( you just add to the engine oil)

Apr 07, 2009 | 2002 Cadillac Deville

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