» » »

Chevy Yukon Engine Noises Boone NC

Had oil changed in a 2000 Yukon (147,000 Miles) by a dealership. Around the time that the new oil change was required (150,000 Miles about 3000 miles on the oil) the engine started to make a terrible knocking/whining noise with no check engine light.

Dogskin Automotive LLC
(828) 297-1022
399 Linville Creek Road
Vilas, NC
Services
Auto Service & Repair, Auto Tire Shop Equipment & Supplies, Auto Cleaning & Detailing

Joes Appliance Service
(828) 264-6064
224 Milton Brown Heirs Road
Boone, NC
Services
Truck Detailing

Audio Grooves Inc
(828) 265-4339
267 Highway 105 Extension, # 2
Boone, NC
Services
Audio and Video Installation

Russell Tire CO
(828) 837-9323
Highway 64 West
Boone, NC
Services
Retail Tire

United Muffler Shop
(828) 262-1025
267 Highway 105 Extension
Boone, NC
Services
Mufflers Repair

U Haul CO
(828) 297-1723
849 Nc Highway 105 Bypass
Boone, NC
Services
Trailer Repair

Miller Industries
(828) 264-8824
1134 W King Street
Boone, NC
Services
AC and Heating Repair

Mountain Diesel Service
(828) 963-6333
3454 Nc Highway 105 South
Boone, NC
Services
Truck Parts

Clark Tire and Auto Service
(828) 262-3555
1563 Blowing Rock Road
Boone, NC
Services
Engine Repair

Stameys Cycle Center
(828) 264-5847
836 Kimberly Lane
Boone, NC
Services
Motorcycle Fabrication

Chevy Yukon Engine Noises

Provided by:

Reader Question Had oil changed in a 2000 Yukon (147,000 Miles) by a dealership. Around the time that the new oil change was required (150,000 Miles about 3000 miles on the oil) the engine started to make a terrible knocking/whining noise with no check engine light.

When I took the vehicle into the shop, it showed that the oil was overfilled by about 2 inches over the full mark. Is it possible for an engine to hold that much oil over a 3000 mile period without blowing it out? Also, could the oil being overfilled cause this engine noise that I am hearing? If it can, what would be the most likely cause of the noise?

The shop where the vehicle is at, is telling me that they will have to take off the head to see where it is coming from because they have no idea what is making the noise, and they believe that it is under the head. Do you have any suggestions?

Luke

Hey there Luke,

This is going to be a tough call as to what really happened. It is possible for the engine to be overfilled by that amount and not blow out the excess oil somewhere. I would say that there is a 50% chance that the excess oil caused your engine noise/knock.

What tends to happen when there is excess oil inside the engine block
is the oil becomes agitated and foams up, causing the oil pump to suck up foamed oil/air and not the true liquid oil that is should suck up and pump through out the engine.

So, basically what happens is the engine runs out of oil since the pump is not pumping the oil in liquid form…..the engine runs out of oil pressure and internal damage occurs.

To read the full article, visit Myhonestmechanic.com