Engine noises on an 02 XLT??

[vp6799]

I purchased my 02 ex XLT with the 4.0L 4X4 a few months ago. It's got either 84 or 85K miles, not really sure?? She's been an awesome ride so far, But now I'm starting to hear a really strange noise from the motor??

Around 2500 to 3000 RPM's, You can hear a loud rattle coming from the engine compartment. It doesn't really sound like a loose heatshield on the exhaust. It kinda sounds like a screwy lifter or something to that effect??

I was wondering if anyone else has or had a problem like this. I was thinking about sending it in to the stealership for a check up, but I wanted to check here first.

Vic

 

[donniesd]

My Ex does the samething. I have searched and found nothing. And im not paying ford 75 bucks a hour. :thumbdwn:

 

[SpartanTS]

Many say it's the timing chain. I've experienced this same exact noise, and when I got an oil change, it went away and was never heard from again.

 

[Oldwolf]

TSB 04-15-4

08/09/04

RATTLE NOISE FROM PRIMARY CHAIN DRIVE AREA
2000-3000 RPM - 4.0L SOHC ENGINE

FORD:
1999-2002 Explorer
2001-2002 Explorer Sport Trac,
Explorer Sport, Ranger

MERCURY:
1999-2002 Mountaineer

This article supersedes TSB 02-08-01 to update part numbers and add a labor operation for vehicles with auxiliary air conditioning.

ISSUE

Some vehicles equipped with the 4.0 SOHC (single over-head cam) engine may exhibit a primary timing chain rattle noise. The noise is heard during hot and cold engine operation (but mainly heard on cold engines) under acceleration, typically at 2400-2500 RPM. To verify concern, accelerate in 2nd gear between 2000 and 3000 RPM and listen for rattle noise that sounds similar to spark knock. This may be caused by the primary timing chain tensioner system.

ACTION

Replace the Primary Timing Chain Tensioner, Chain Guide, Jackshaft and Crankshaft Sprockets with a Primary Timing Chain Tensioner Kit. The Kit includes an improved Primary Chain Tensioner, as well as updated Primary Chain Guide, Primary Jackshaft, and Crankshaft Sprockets. Required fasteners, Primary Timing Chain, and Front Cover Gaskets are also included. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

Verify the condition. Obtain the correct Primary Timing Chain Tensioner Kit and follow the instruction sheet supplied with the Kit.

Use Kit 2U3Z-6D256-CA (balance shaft engines)

for:

^ 1999-2001 4X4 Explorer/Mountaineer

^ 2001-2002 4X4 Sport/Sport Trac

^ ALL 2002 Explorer/Mountaineer, except engine codes 2G-960-AA and 2G-964-AA.


Use Kit P/N 2U3Z-6D256-DA (non balance shaft engines) for:

^ 1999-2001 4X2 Explorer/Mountaineer

^ 2001-2002 4X2 Sport/Sport Trac

^ 2002 MY Explorer/Mountaineer with engine codes 2G-960-AA and 2G-964-AA

^ ALL 2001-2002 Ranger

 

[vp6799]

TSB 04-15-4

Thanks for the info, I figured out that was the problem. I read it on another thread, then checked it out.

looks like it's a good job for the dealer.



Vic