The stock iac crapped out and i replaced it, awhile ago. The idle is much too high and i cant adjust the screw on the throttlebody anymore. Its been through MANY drive cycles. What am i missing?
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1992 SHO(what's left of it)
1986 F-150(rust and option free)
1950 Studebaker pickup(moves-kinda, stops-no)
1987 T-bird(dead 3.wait, SHO swap in store)
1991 CV $500 cream puffF -
On what vehicle??
"Hope and dignity are two things NO ONE can take away from you - you have to relinquish them on your own" Miamibob
"NEVER trade your passion for glory"!! Sal "the Bard" (Dear Old Dad!)
"Cars are for driving - PERIOD! I DON'T TEXT, TWEET OR TWERK!!!!" -
You've got a vacuum leak or the replacement part is poorly made. THe aftermarket parts don't always work right. The screw shouldn't ever be adjusted either. I'd be swapping that IAC for another, and if you have a choice in the matter, get a Motorcraft.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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'91 CV, 5.0. The replacement is a proven part off another car. No vacuum leaks. The idle starts high, tapers off just a little. Put it in gear and while its waiting to fall into gear, the idle increases several hundred R's. the idle also increases significantly when you turn on the defrost or a/c.1992 SHO(what's left of it)
1986 F-150(rust and option free)
1950 Studebaker pickup(moves-kinda, stops-no)
1987 T-bird(dead 3.wait, SHO swap in store)
1991 CV $500 cream puffFComment
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is the TPS good? Any codes? if the TPS is out of range, it also tends to do goofy stuff to the idle speed.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
Everything looks like voodoo if you don't understand how it worksComment
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If the idle screw has been adjusted, the TPS will be wrong, and will cause all kinds of problems. I'd also look into vacuum leaks, very common on these old POS's. Brittle old plastic, dried rubber....Builder/Owner of Badass Panther Wagons
Busy maintaining a fleet of FordsComment
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Is there a way to test a vacuum leak without puting your ear to all the lines?"To Find yourself, you must first lose yourself"
-1973 Volkswagen Bus Westy
-1986 Honda Magna 700cc
-1989 Lincoln Town car Signature Series
-2011 Subaru OutbackComment
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propane leak on a stick... when the engine revs... that's the leaky location.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73
... and it should all work like magic and unicorns and stuff.
Originally posted by dmccaig
Overhead, some poor bastards are flying in airplanes.Comment
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1990 MGM: $50 E7 heads, HO cam, Holley SysteMAX lower intake, HO upper intake with an Explorer TB. LSC ECM. Lincoln logs into stock dual exhaust. K&N drop in air filter. Wide ratio AOD, 2400 converter with a 3.08 one tire fire out back. Car is less slow now. Then there's the '92 Beater. Dual 2.25" exhaust with shiny tips. Rumbles nice. Super slow. Burns oil too.Comment
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Sounds pretty clever, my fear is that it might ignite something , no?"To Find yourself, you must first lose yourself"
-1973 Volkswagen Bus Westy
-1986 Honda Magna 700cc
-1989 Lincoln Town car Signature Series
-2011 Subaru OutbackComment
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Shouldn't unless you hit the ignitor.
'93 T-bird
'03 Silverado ECSB
Missed:
'88 Mark VII
'86 CVComment
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Yea, make sure you have good plug wires, that aren't arcing lol
1981 Mercury Marquis Brougham 2-Door 302/ 5-speed -special blend (GMGT)
1987 Lincoln Mark VII 5-speed (Errand runner)
1989 Mercury Grand Marquis (Base Runner)
2007 Lincoln Town Car Signature Limited (Hustlyn)
2011 Ford Crown Victoria Police Interceptor (Down with O.P.P)Comment
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