We have a 2004 Cadillac Escalade, 2wd with approx. 52,000 miles. Recently our
engine has started making a loud knocking noise and runs a little rough when
it's cold. The noise started approx. 2 months ago and it has become louder and
lasts longer. The noise usually fades after the car has been running 5-10
minutes (not enough time to take to a mechanic). At the same time the vehicle is
knocking, white smoke is emitted from the tail pipe. I've also experienced my
heater not working...can this be tied to the issue? After researching online,
I've found that it's not unusual for a GM product to have a cold start knock,
but the noise has only worsened and I'm afraid we might be dealing with a bigger
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www.consumeraffairs.com > Automotive > Auto Manufacturers
Rating: 2.3 - 18 votes
I love my car but I will NEVER EVER purchase another Cadillac Escalade again. ... I own a 2004 EXT and the trans. had to be replaced within 60K miles (10K miles ... After replacing all the above at 113,385 miles no other problems as of now. .... I bought a pre-owned 2008 Cadillac Escalade ESV under warranty and had ...
Sounds like the driveshaft is out of balance ...this is an easy DIY project if you have the time..let me know if i can help you I can give you step by step directions if the drive shaft is your concern..let me know if i could help
Serpentine belt tightener pulley bearing was bad, made a loud noise. I replaced the pulley (jobber part) and the noise level was reduced enough to notice the waterpump was also making a noise ... more revs = louder noise. I am now replacing the water pump. (approx 60k Miles too).
It could be the fuel pump pressurizing the system. Does the sound stop after a few seconds? If it is the fuel pump then it is a normal sound. Fuel pumps will resonate in the tank when you are low on gas, making them sound louder. If it is more than a hum then I would get it checked out.