Question about 1991 Ford Econoline

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Hobgoo44 High Idle

Ford E250 ClubWagon 5.6 EFI random high idle-won't kick down

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Could be Idle control valve sticking, vacuam hose leaking or upper intake plenum gasket failure, if you've already checked to make sure thottle plates are closing. Next time it happens, try tapping on the IAC with a small hammer and see if the idle drops to normal.

Posted on Jan 04, 2009

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High idle at start up 2200rpm then slowly drops but always seems high have to ride brakes to stop


Long High idle after start up - YotaTech Forums

www.yotatech.com/f116/long-high-idle-after-start-up-246386/
Dec 20, 2011 - aviator's Avatar ... When the high idle is no longer needed the piston retracts and the throttle ... Sometimes the piston gets gunky and slow to react... clean the ... you are already idling higher then normal the idle up will only be worse... for ... it takes to kick down when I first start it up, high idle is at 2200 RPM it ...Missing: lincoln

High idle at start up - F150online Forums

www.f150online.com/forums/v8.../306364-high-idle-start-up.html
Oct 27, 2007 - ... King Ranch · Lightning · Lincoln Blackwood & Mark LT · SuperCrew · SVT ... my 2000 when its been sitting goes up close to 2k then drops down in seconds. ... so what your saying is when it's cold outside I can expect it to start andidle at 2200 rpm. sounds pretty off to me. ... Vehicle: 2004 Ford F150 5.4L. 4.6l Intermittent High Idle. Why?
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Nov 30, 2015 | 2004 Lincoln Aviator

2 Answers

Idles erratically, just changed rocker cover? gasket .now it revs high, not sure why, can I fix this suzuki swift 1990


rocker cover, i edited it for you. (my guess high is over 800rpm)?
hot engine or cold engine or both?
if hot is water temp, 180F? or stuck at 149F"? too low...
are you in neutral or drive? or park.?
which engine?. is it there are many sizes used on Swifts,
one if the largest number of engines on car.
my guess is a "G" engine family.
High idle is usually a vacuum leak,
is this a CARB or EFI engine?, (TBI, throttle body injection:?)
if it is EFI and if TBI
any air leaks will cause too fast hot idle.
here is the list: EFI only ! electronic fuel injected.
  1. Vacuum leaks. (hose left off, or now cracked?)
  2. sticking ISC, idle controller.
  3. TPS set wrong, and no longer has a working idle switch.
  4. ECU in Limphome (if CEL lamp (dash) glows running , bingo)
  5. PVC hose fell off.. sucking in fresh air , and higher idle.
more if you have answers to what your engine and driveline
consist of.




here is the lineup
GEN2 Swifts (the G family used)
1.0 L G10 (LP2) I3
1.0 L G10T (LS3) turbo I3
1.3 L G13A/BA (L72) 8V I4
1.3 L G13B/G13K 16V DOHC I4
1.5 L G15A 16V I4
1.6 L G16 16V I4

Aug 07, 2015 | Suzuki Cars & Trucks

1 Answer

1996 Jeep cold start heater location


It likely has EFI (electronic fuel injection) and an idle air control valve that regulate idle speed. They can get gummed and fail to have a fast idle when cold, or get stuck the other way, and have a too fast idle all the or regularly take its time slowing down after you take your foot off the gas. An engine temp sensor can also cause a lingering high idle if it reports the engine as still being cold after warm up.

Aug 15, 2014 | 1996 Jeep Grand Cherokee

1 Answer

I have 1990 ford f150 5.8 liter it idles high when in park and idles about 1200 rpm when in gear and sometimes surges up and down. i have clean the idle control and check showing 12.5 ohms still won&#


One common problem is a vac leak or a sticking throttle plate.
The computer controls idle speed by how much air is allowed into the intake. The idle control valve could be sticking even tho you have cleaned it, or have a faulty motor.

Sep 12, 2012 | 1990 Ford F150

2 Answers

I have an 1989 F150 with the EFI 5.0L engine with a high idle problem.


idle air control . unplug it and see what happens.

Jan 14, 2010 | 1989 Ford F 150

1 Answer

Extremely high idle speeds develped overnight


check idle speed control make your throttle valves not stuck.check for vacuum leak around the throttle body area look for broke gasket.

Apr 13, 2009 | 1987 Ford Ranger

2 Answers

1989 ford f350 460 gas engine high idle problem unpluged map tps&cold start solenoid truck still runs no differance on idle still high?


89 Has EFI not carb. I vote to give you a ZERO!! The problem is more likely the IDLE AIR CONTROL VALVE (no sh!@#) "IDLE"????

Aug 09, 2008 | 1996 Ford F350 Crew Cab

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