Danny's X5 4.6 Thread

[V8 00USH]

My 4.6is is on 120k miles and I'm already starting to have nightmares about the guides - I've got zero service history but the engine is absolutely silent on startup and when running so hopefully I should be ok until I have time to tackle it.

[X53Jay4.8is]

Originally Posted by V8 00USH

My 4.6is is on 120k miles and I'm already starting to have nightmares about the guides - I've got zero service history but the engine is absolutely silent on startup and when running so hopefully I should be ok until I have time to tackle it.

There is no need to worry unless you start to hear some type of sound. If you have leaks on the engine at the timing cover then this is a gold time to have the work done or at least inspect the guides. Even if they are in tact they do get brittle and then tend to break. Again if your vehicle is absolutely quiet then don't worry about it at this time.

[V8 00USH]

Originally Posted by V8 00USH

My 4.6is is on 120k miles and I'm already starting to have nightmares about the guides - I've got zero service history but the engine is absolutely silent on startup and when running so hopefully I should be ok until I have time to tackle it.

Originally Posted by X53Jay4.8is

On my personal 4.6is the guides started to go at 99k mikes and what gave it away was a whirring sound that I thought was one of the pulley bearings, alternator bearings,or a/c compressor bearings

So...some 7,000 miles after I contributed to this thread and was a little concerned about my guides failing at the mileage I was on and this exact whirring symptom occured.....120 miles later and my engine is rattling badly due to chain guide failure.

Do it sooner rather than later people - I think to be safe any engine over 100k it should be done without delay.

[X53Jay4.8is]

Originally Posted by V8 00USH

So...some 7,000 miles after I contributed to this thread and was a little concerned about my guides failing at the mileage I was on and this exact whirring symptom occured.....120 miles later and my engine is rattling badly due to chain guide failure.

Do it sooner rather than later people - I think to be safe any engine over 100k it should be done without delay.

Yep did't even hesitate on ripping the X5 down once I heard the whirring sound. She gives you plenty of warning. Some people just choose to ignore the signs.

[V8 00USH]

Originally Posted by X53Jay4.8is

Yep did't even hesitate on ripping the X5 down once I heard the whirring sound. She gives you plenty of warning. Some people just choose to ignore the signs.

Oh believe me....the signs weren't ignored. I knew exactly what it was. Unfortunately however I didn't have another vehicle to use at such short notice otherwise trust me....I would have been using it without hesitation.