We have a 2014 with 90,000 miles. Took it to the dealership for blowing white thick smoke out of the tailpipe. Dealer is telling us that the entire engine needs to be replaced because of sludge build-up. They are saying it is from lack of maintenance. We have owned the car 18 months and have change…

The car had 58,000 when we bought it.

Something doesn’t add up here. Time for a second opinion.

So OP purchased the car w/60 K miles and it now has 90 K, during which interval the oil was changed twice, right? That should be plenty of oil changes during your ownership and should meet the manufacturer’s requirements, providing the correct oil spec was used and likewise the correct oil filter. …

I have seen sludged engines get repaired under warranty with a service contract but those were 3,000 to 8,000 miles after the sale and because we were the selling dealer may be the reason the cause of failure was overlooked. After 32,000 miles it will difficult to place blame on the previous owner …

[image] philkel: Took it to the dealership for blowing white thick smoke out of the tailpipe. Dealer is telling us that the entire engine needs to be replaced because of sludge build-up That sounds more like a classical case of coolant breach (head gasket) to me. I’d get another opinion. Had…

Oil can present itself as white also. If the engine is severely sludged it could be that the valve train area is sludged so badly that the engine oil cannot return through the plugged up cylinder head drain holes with the oil completely flooding the valve guide bosses and seals. Personally, I don…

Thick billowing clouds of oil smoke would be unmistakable in terms of odor versus coolant. That might be another way to differentiate between them if color is challenging. I knew a guy in high school that tore down a motor and threw all the valve train parts in one bucket. Randomly replaced them. On…

I too was thinking white smoke was burning coolant, not burning oil. Can’t you remove the heads and see if there’s sludge? I know that’s not a simple thing… but I’d rather to pay to have the heads removed than just up and replace the engine. Plus, if it is a head gasket breech, you’d have to remove…

Thank you so much for taking the time to reply! We are definitely getting a second opinion. It was definitely white thick smoke. It only happened when starting and then goes away. When I first brought it to the dealership, the guy thought I had accidentally filled up with diesel. I assured him I…

I would suggest to get it straight how many oil changes you really had in your 30K miles of ownership, it is not clear from replies. Good suggestion above that you can likely get your records from CarFax if service facilities you used reported the service (which is very likely, usually it shows up)…

2014 Infiniti QX60 Engine Replacement Options

Maintenance/Repairs

George_San_Jose1 December 30, 2017, 11:41pm 28

Are you losing any brake fluid OP? If so, there’s an outside chance that getting sucked into the intake manifold via the power brake booster might be the cause of the white smoke rather than a head gasket breech.

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2014 Infiniti QX60 Engine Replacement Options

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