1555 messages,
Last post on Dec 19, 2012 at 2:18 PM
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Ford Escort ZX2 Forum.
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Ford Escort, Coupe
#1552 of 1555 99' ZX2 high idle
by 99fordzx2
Jul 07, 2012 (9:54 pm)
My 1999 Ford Escort ZX2 has a high idle and I can't get it to back off. It starts at about 2200 rpm and just keeps going up. After driving, when put back in park or neutral, idle continues to climb until I turn it off. Any ideas?
#1553 of 1555 Re: 99' ZX2 high idle [99fordzx2]
by Mr_Shiftright HOST
Jul 08, 2012 (10:56 am)
could be a defective Idle Air Control Valve, which in turn is controlled by your car's ECM. The ECM determines the amount of air that is allowed to pass through the throttle plate, and the IAC actually does what the ECM tells it to.
DO NOT...do not....attempt to clean the throttle bore or throttle plate with a cleaner.
Only other thing I can think of is that you have large vacuum leak somewhere---loose hose to power brake, a bad intake manifold gasket, that sort of thing. Using some carb cleaner as a tester, you can squirt it into various cracks and joints and if engine idle speed changes, you have a vacuum leak.
#1554 of 1555 Re: 99' ZX2 high idle [99fordzx2]
by 99fordzx2
Jul 25, 2012 (10:14 pm)
Weird. As sudden as it started, it just stopped. Now it idles down fine. Let's hope that it doen't start up again.
#1555 of 1555 Re: 99' ZX2 high idle [99fordzx2]
by noop
Dec 19, 2012 (2:18 pm)
Hi,
I have a '03 ford ZX2 which has leak in intake hose. Plus it has a leak in the coolant hose. My local mechanic has given a price of 332 + tax for labor + parts. Please let me know if this is a fair price.
Thanks!
Noop