1990 Acura Legend Q&A
1990 Acura Legend Question: MY CAR IS IDLING UP AND DOWN
Sounds like there is a vacuum leak somewhere at the intake manifold. Check all the vacuum hoses, make sure they are not disconnected or broken. Zee - ZeeTech
As Zee said vacuum leaks are most likely the cause but low coolant level or bad coolant temperature switch also causes this surging idle. - patrick mannion
when i start my car to warm up after one or two minute it start to rev up like some one is pressing and releasing the gas peadle ? my second question, when i am driving at 60mph i notice my rpm is ...
my car revs up and down when in park but it only does it sometimes,what could it be and how much do you think it would cost to switch it?
thanks you answering my question.now i would like to know do i need to replace the cold idle valve right away?will it damage my car at all?
No heat til car been running 20 or 30 min. Replaced thermostat, coolant temperature sensor and 2 hoses. Overflow bottle is nearly full. Runs at normal temp for a few minutes then temp gauge goes up...