SOURCE: RPM's very high when driving and stay there
The intake gasket blow out and create a vacuum leak. When it cold get a can of carb cleaner and spray it lightly around the intake gasket if you hear the engine change it's running condition then eather the intake has failed or an injector O-ring has failed.
SOURCE: my 1999 malibu idles to high and when driving the
IDLE SPEED CONTROL FAULTY OR THE THROTTLE LINKAGE IS STICKING.
SOURCE: changed oil sender because of
Best check would be to screw a manual gauge into the port where the sensor goes and see what the true oil pressure is.
SOURCE: Hi, My nissan xtrail 2001is idling high. Cold
Go by autozone or somewhere like that and get a free scan. May be as simple as a thermostat
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Id like this comment for all on this site it is not always expensive when you get a good tech as he knows how sysyems work and wont just rip stuff off and replace because some person said his did that.If you dont no how a system works you cantdiagnose the bloddy thing.To many would be mevhanics on here
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