Originally posted by I-BCruzn:
i took your advice and sprayed carb cleaner around the throttle area, and on and around the hoses and seals. I'll admit, the engine did stumble just a bit...
Originally posted by I-BCruzn:
On the same note, i checked the hoses and not one of them appeared damaged/broken/not connected properly. how do i know which one needs replacing?
Where did you spray when the engine stumbled? If you can reproduce this consistently, then that is the area that has the vacuum leak.
Originally posted by I-BCruzn:
...my neighbor came over and told me to spray the cleaner directly onto the throttle plate, to clean any gook that may have settled there. I did, and the car improved 85%!
I'm not too familiar with the 2.0-liter engine, but the 2.5-liter engine is notorious for getting clogged behind the throttle body gasket (there are three small (~1/4")EGR passages that get clogged up w/ gunk). If spraying into the throttle body seemed to help, then I would remove it, clean it thoroughly, clean behind the gasket, replace the gasket, and put it all back together.
96 Contour SE
Duratec V6 24-valve 2.5L ATX
108,000 mi.
Replaced: crankshaft w/ DMD, EGR valve (clogged), EVR, DPFE, PCV valve, evap emissions hose & tube (cracked), window regulator (broken), LH & RH PCV tubes, UIM gasket (leak), ignition coil
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