The TURBINE inside a turbo-charger stops spinning when the vehicle is at idle because there isn't enought exhaust pressure to keep it spinning, lowering the internal engine pressure. creating less wear on the turbo and engine also alowing the engine to idle.. if it was to continue forcing air into the engine it would also need to force gas. to match the air fuel ratio to keep the car from dying, causing the engine to rev.. not stay at idle..
under the bonnet mate by the engine
put in more coolant but its not running hot
Some turbo cars will be fitted with a turbo timer, which keeps the engine running for a specified time after the ignition is turned off. This allows the turbo to cool down before the engine shuts off, which prevents potential damage to the turbo.
With any turbo it is a good idea to let the engine idle briefly before turning it off. This allows the turbo to slow down before losing lubricant. If you don't let it idle it probably won't hurt anything, but over time it may cause the turbo to wear out faster.
It is the Alternator. use a voltmeter an check if voltage with engine running is arrounnd 14v or more. than it s good. if voltage below 14 bad alternator.
A good practice is to let your engine idle for a few minutes after starting so the oil pressure can build and lube all the internal parts of the engine. A vehicle with turbo should be idled before shutting off to let the turbo cool down.
A turbo timer is always a safe bet on any turbo engine. It lets the engine idle after you remove the key and lock the doors. Doing this lets the engine oil cool the bearings in the turbo which will extend the live of the turbo. Also keeping your oil changed like is outlined in your owners manuel will help also.
3 minutes.
YES! Especially if you have been pushing it hard. Turbo's need to 'cool off' after being used, and is very important if they have been used hard. Oil from the engine will cool the turbo off after a few minutes. Sophisticated cars and cars with twin turbos usually have timers built in to the ignition system which will run the engine for 2-4 minutes after you turn the key off, specifically to cool the turbo(s). You should always idle a car with a turbo before you turn the engine off - longer period of time if it was racing.
There are several things that can cause your 1997 Kia engine to idle too high. The most common cause is a malfunctioning fuel pressure regulator.
boost pressure, as you call it, will not show on gauge,if you have one, while engine is at idle the turbo pressure does not boost but runs all the time according to the revs of engine