when my car is idoling, it will rev up and down between 1200 and 2000. any suggestions or help would be greatly appreciated. thanks

 

i do not why we get this every other day. Bogging issues. They are many answers. But from my previous post if you searched. I stated air was in my cooling system. So i unscrewed the bleeder screw when the coolant was boiling and expanding by seeing the level rise on the radiator cap inlet, then I capped it on and opened the screw and until coolant spewed out I torqued it and now no more vrrrom boogg vroomm. Done!

 

Many number of issues can causes the wandering idle; as the phone number before me stated it could be an issue with the coolant system, or it could be an issue with a vacuum leak. Whip out your service manual and start narrowing down causes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">Many number of issues can causes the wandering idle; as the phone number before me stated it could be an issue with the coolant system, or it could be an issue with a vacuum leak. Whip out your service manual and start narrowing down causes.</TD></TR></TABLE>


It gots to be the air in coolant system. Tell me this, how do you refill an engine with clean coolant when the engine is cold?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4163175587 &raquo;</TD></TR><TR><TD CLASS="quote">


It gots to be the air in coolant system. Tell me this, how do you refill an engine with clean coolant when the engine is cold?</TD></TR></TABLE> Without running a bypass of the thermostat I'd be hard pressed, but that is beyond the point. Are you trying to say that air in the coolant would be the ONLY thing to cause a wondering idle, and that a vacuum leak would not?