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were is locate the cold start valve
My 1991 740 volvo turbo doesnt start specially during the morning.Is it comes with a cold start valve?
You need to clean (or replace - $200) the idle air valve.
It's better to go ahead and replace it.
The cold start valve is sometimes called the fifth injector. It is mounted to the intake air distribution box and is in line with the fuel rail. It has an electrical connection, a fuel inlet line and a fuel outlet line. The valve is essentially constructed the same as the regular fuel injectors. The main difference is that the cold start valve injection time is measured in seconds rather than in milliseconds like the regular injectors.
The PCV valve on a 2004 Volvo S40 is located on the engine crankcase. It is a small rubber valve.
Valve clearance of Volvo f12, are set using a feeler gauge on the lash adjuster.
For valve clearance of Volvo d13a one needs to remove and re install injector cups.
The idle air control valve on a Volvo S80 is located on the intake manifold. The valve controls the rate at which the engine holds an idle.
Broken valve spring
The valve cover ask it, on a S 40 Volvo, can be replaced by first removing the valve cover. Remove the old gasket and replace with a new gasket.
my 2002 volvo s-40 is miss firing and it is alleged that the fault is from the idle air control valve. how can i clean the valve?