Yes. My 2000 Saturn had a leaking intake gasket, idle about 1900. Also caused misfire in idle and extreme acceleration. Test for leak using brake cleaner on suspected leak. I replaced gasket and all problems fixed.
if you had it heat high enough it very likely worped your heads and or damaged the head gasket
Bad echaust manifold or header gasket. Or loose header or manifold gasket.. if its just a loose bolt the gasket will eventually crack or break from pressure.the popping sound is high pressure leaking past the gasket Bad echaust manifold or header gasket. Or loose header or manifold gasket.. if its just a loose bolt the gasket will eventually crack or break from pressure.the popping sound is high pressure leaking past the gasket
replace the leaking intake gasket...?????????????need more info replace the leaking intake gasket...?????????????need more info --------------------------- The '00-'02 SOHC s-series have been notorios for leakin intake manifold gaskets. Symptoms include a SES code P0301 -304 (misfire codes) along with rough and high idles. A simple test will show if this is the problem. Using brake cleaner with the car on, spray around the gasket at each cylinder. if the idle changes then you have found your issue. FOr a how-to procedure with pictures email/message me.
If it's a ford, I'd check the Idle Air Control Valve (IAC) High engine idle can be caused by alot of things though such as; ECU (computer) malfuction, a leaking intake manifold gasket, or even as simple as a disconnected or leaking vacuum hose.
You need to find the vacuum leak that is causing the high idle. You might have had a gasket slide out of place during install.
Blown intake manifold gasket or blown head gasket, figure on $600 to $650 to get intake gasket fixed and if a head gasket your looking at least $1,000.
Check for vacuum leaks. The gasket was known to blow out between the throttle body and the intake manifold.
High idle can be from a malfunctioning coolant temperature sensor, idle air control, throttle linkage problem or a intake manifold leak or (vacuum leak). I have come across many v8 fords with intake manifold leaks. Unplug the connector on the idle air control, if it still has a high idle, it will either be the idle air control seized, throttle linkage or a intake manifold leak (air leaking into the manifold through a gasket or vacuum leak) If the idle comes down it will be the coolant temperature sensor or a power train control module problem. A scan should pickup a coolant temperature sensor out of range fault code if it's at fault.
Two main causes for this on a SL's SW's or SC's are 1) a leaking PCV hose from the valve cover to the intake 2) a faulty coolant sensor ( yellow and black wires) by upper coolant hose Other possible causes are a leaking intake gasket or throttle body gasket. Hope this helps-
Check for vac leaks. A can of starter fluid helps. When you hit the sweet spot, you will hear the difference.
replace the air idle control sensor on the throttle body ********* also check for vacuum leaks, hoses fallen off or deterioriated, or intake manifold gasket
High idle speed is almost always the result of a vacuum leak. Find out AND REPAIR what's leaking and the idle speed will drop to normal. Check for disconnected or damaged vacuum lines or vacuum accessories, damaged intake manifold/throttle body gasket and (sarcasm) one of my favorites, a leaky or damaged EGR valve.