what could this be and what is a price estimate for it........also, could changing the oil help?
2007-04-01 14:09:45 · 7 answers · asked by Dak B 2 in Cars & Transportation ➔ Car Makes ➔ Ford
Could be harmless piston slap.
Are you running the right viscosity of oil? Brand doesn't matter much for this particular CASE - I'm not saying certain oils aren't better than others, but as far as this ticking/slapping sound goes forget what brand you use.
What weight do you use? And where do you live? If you're already using the manufacturer's recommended weight (which is 5W-30 for many cars, but look in your manual), then I wonder if you are in a cold climate?? If so, you may want to try one of the new 0W-30 oils. They protect just as well when hot as a 5W-30, but flow faster when the engine is started.
Let's talk oil filters too, very important.
Do NOT use no name, or entry level Fram filters! Some of these lack anti-drain back valves. When you turn the engine off, instead of the filter staying full of oil and beginning to immediately pump through the engine at the next start, the oil has flowed in reverse while the engine was off. Causes the pump to have to build up a lot more pressure again.
Believe it or not, your car manufacturer's oil filter is probably the best blend of quality and value you can buy. And I don't usually toot the horn for OEM parts.
For Gm's, stick to ACDelco. For Ford, motorcraft. For Toyota, use Toyota filters, etc. etc.
2007-04-02 05:40:13 · answer #1 · answered by Brian D 2 · 0⤊ 0⤋
It could be you have a hydraulic valve lifter bleeding down and it takes a little time for it to pump back up. You would have to replace the lifter to get it to go away.
You will have to take it in and get it checked out, if it bothers you or live with it. As for changing the oil, that's always a good idea. You might also try some oil additives to try and free the lifter up.
Someone also mentioned piston slap, and that's a possibility too.
2007-04-02 00:14:33 · answer #2 · answered by Fordman 7 · 1⤊ 0⤋
It's called piston slap, until the car warms up the rings are not fully expanded and when warmed up the rings expand and the noise stops, GM had a lot of problems with this in 94 on the 3.1 V6 engines, it won't hurt a thing it's just annoying.
2007-04-01 14:17:04 · answer #3 · answered by mister ss 7 · 1⤊ 0⤋
This only happens when the engine is cold, correct? If so, this is because the oil has not been pumped through the system yet and the engine is running dry. This is entirely normal - especially in older vehicles, but if its more than just barely audible, definitely take it to a repair shop.
2007-04-01 14:21:00 · answer #4 · answered by sss18734 3 · 1⤊ 0⤋
It could be alot of things. Worn internal engine parts will knock until oil is dispersed through the engine, as well as low oil level could cause that also. Depends on engine mileage, proper maintinence, on what it could be. Sounds like worn bearings which is very costly, but hard to tell when I cant look at it.
2007-04-01 14:18:41 · answer #5 · answered by ALLAMERICAN 3 · 1⤊ 0⤋
Wish i knew what kind of car it was.
I didnt see anyone say anything about the silicon valve thats in the oil filter, wich could also cause this.
Also there were a few 5.4, and early 6.8 that had a knowen issue with this but never saw one fail from it
2007-04-02 13:11:00 · answer #6 · answered by moe 4 · 0⤊ 0⤋
Change oil brand to
Castrol GTX
2007-04-02 03:46:04 · answer #7 · answered by iCCC 3 · 0⤊ 0⤋