I am experiencing rattling on cold start up and then the noise goes, which makes me wonder is it big ends or is it tapits?

this is normally the hydrolic tapits, try changing the oil and filter that may help

:00000732: trevor,

Concur with motego...always suspect your tappets first before trying more expensive fixes. In the US, we have an excellent motor flush product made by Halvoline that is a high grade motor oil with a solvent and detergent package. Hopefully you have a similar product. I do not recommend any flushes that use a kerosene base, as these can cause engine bearing damage.

The clearance in the inflow hole and the internal gallery in the tappet is quite small These are easily clogged if you are not diligent about routine oil changes and an engine flush every 50,000 km.

this is the cheap and easy fix, let us know how it works out.

Byron

Byron...what is the name of this Havoline product? I was unaware of the engine flush requirement (or recommendation). Do you just pour it in and run it through with the motor going or just pour it in and let it drain out?

I'd like to know, too.

On my previous car, a '96 Kia Sportage with about 125K miles, I had a serious problem with noisy valves. After reading about Seafoam, I tried it. It worked!! I let the engine suck about 2/3 of a can through a vacuum hose into the intake manifold until it stalled a few seconds later, then I went in the house and took a shower, so it sat in the carport for about 30-40 minutes with the stuff in the manifold and on the valves. The remainder of the can went into the fuel tank.

When I started it, it smoked BIG TIME, like I was doing a whole summer's worth of fogging for mosquitoes at one time. Prob'ly ticked the neighbors off, too. It threw a CEL, ran like dog do-do, and finally stalled about three blocks from home. I reset the CEL by removing and reinstalling the ECU fuse and it started and ran with no problems. Until it was wrecked last week, the noisy valves were completely quiet. Gas mileage was up, too.

Seafoam is about $8 a can at Advance Auto Parts. With gas prices as they are, I'm sure I recovered the cost of the can in 2-3 tanks.

A little personal discovery.

The Santa Fe's 2.7 Delta engine (like many others I'm sure) does not appreciate being started, moved, and then shut off almost immediately after. I pulled the car out of the garage and into the driveway, shut it off, and left it there for a few hours while I cleaned things out. When I restarted it, it was shuddering like there was a misfire. No check engine light and it stopped after 5 to 10 seconds.

It did it again on a bone cold start after picking it up from the dealer. I suspect they moved it and shut it off not long after starting it. My friend told me if this happens enough, the computer will throw a CEL and a misfire code, likely a random multiple misfire.

So what I do now if I move the car is let it run for a few minutes and then kill it.

P.S. Byron...you still owe me an explanation on this product you've found. :bwekk:

OOps, missed all of the inquiries. Also, don't want to get the AMSOIL sellers in the forum upset.

The product is available at Havoline Express Lube, I just could not find anything on the internet. this product is in a black plastic gallon bottle, has the Havoline logo and is called Havoline Engine Flush. It is a motor oil base that is 0-5W with a solvent and detergent additive. Guaranteed not to harm your engine. You drain, install this product, run for 5 minutes, drain, and refil with fresh motor oil.

My lube shop recommended it to me, I have used this routinely in 4 Hyundais, and it does a great job. Sorry can't be more defiinitive than black plastic gallon bottle shaped like an antifreeze gallon container, and labeled Havoline Engine Flush.

Byron