Question about 1987 Ford Ranger

1 Answer

Wont idle when i let the key go - 1987 Ford Ranger

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 312 Answers

There are several causes why vehicle will start, but not run or idle.
Here goes.
1 Vacuum hose leak, or simply fallen off. That one is good for idle dropping off to zero.
The Fix? Locate the Hose and re-install, or replace. If the hose if loose, cut the old end off so that there is fresh rubber at the connection. If it is rotted, just replace.

2. Need new spark plugs and wires, perhaps a distributor cap and rotor. You did ths. Good for you.

3 Weak Coil, though this is not common.

4 Ignition timing

5 Air filter badly clogged

6 Clogged fuel filter, replace

7 A piece of Italian Salami lodged in the wrong part of the engine.
Remove, but don't eat.
wont idle when i let - markfreedman_3.jpg

Have a Happy New Year !

Posted on Dec 31, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Toyota avolon wont stop running when you turn the key off

This is known as 'dieseling'. The most common causes are

-idle speed set too high

-engine operating too hot (faulty thermostat, faulty temp sender, leaky head gasket)

engine timing is out (loose distributor clamp, worn timing belt, faulty timing belt tensioner)


Jul 19, 2016 | 1998 Toyota Avalon

1 Answer

Wont idle runs rough

Can you hear the fuel pump running when you turn the key on-if you can is the fuel making it to the fuel rail injectors. It sounds like you have a bad fuel pump. check the fuel pressure with a gauge at the fuel rail-there should be something that looks like a tire inflator valve stem that you connect a gauge to. you may also have blockage-a bad fuel filter-Hope this helps Denny

Oct 09, 2013 | Kia Sedona Cars & Trucks

1 Answer

95 magna wont stay on or idle

check throttle body for dirt,air filter,fuel filter,

Feb 26, 2013 | Cars & Trucks

1 Answer

High idle after new throttle body

No, a idle sensor is an electrically-operated valve which allows air to bypass the throttle plate in a fuel injected engine to regulate idle speed. The throttle body sensor is used to monitor the position of throttle in internal combustion engine.-----------------------------------------------------------------------
godiag key programmer

Nov 23, 2012 | Cars & Trucks

1 Answer

Wont idle

you start up and as you let off the gas pedal then it goes way low in RPM? Then stall out,if it does this is vindictive of the Idle air control, you can take a chance and do 2 option you can relace the idle air control or use a throttle body cleaner,why would a cleaner work well to begine with the idle air control is pulse width control and blow by gases gums it up making it rate of keeping the iar control slow in response thus giving low ilde,then stall out, This is if it start and just wont idle, then there is its famous start up and 10 seconds later turns off,this one is different that is you ralarm not recognizing the key to fix this you ll have to reboot the memory disconnect the battery (roll down a window) put the terminal together and and allow 30 seconds then reattach the battery tighten down put key in ignition in the ACC wait 10 seconds then start up. now if the alarm is not the problem you may have a fuel pump problem this happens when the pressure it must supply to the injector are too low for proper injection,

May 12, 2011 | 2001 Chrysler PT Cruiser

1 Answer

Took battery off v8 gt when put back car at stops tends to die a little but wont turn off, then it will go back to normal a small surge drop to about 500rpm

you need to ride the car, for a few more miles until the ecu makes some kind of self diagnostics and reprograms idle speed control if it doesnt then you should go to a shop for a idle programming, its done with a scanner that lets you enter to the ecu's k.o.e.o test (key on engine off ) and k.o.e.r. test (key on engine running ) and there the ecu is going to ask for idle desired adjustments

Dec 08, 2009 | 2005 Ford Mustang

1 Answer

89 dodge shadow. hard start. normal idle cold, fast idle warm. sometimes it wont start until i hear fuel pump activate.

The car may be hard to start because it may need a normal tune-up. If the spark plugs are pretty used, they will slowly stop burning as much fuel because the spark slowly gets lesser and lesser. On a cold day the fuel is harder to ignite with a small amount of spark.
Normal idle when its cold means that your cars idle is probably too high. If you lower the idle, the choke on a cold day will keep the idle a little higher until the motor warms and then it will kick back off. If the idle is too high, it will run very rich, smothering itself with fuel, and causing the idle to stay low. When the car warms, its creating better spark when its warm, and with the idle being too high its running at a fast idle.
The car wont start sometimes can be the cause of a few things. If the ground is bad on the fuel pump, it wont make a good connection sometimes for when you turn the key on, the fuel pump dont pump the fuel to the engine. Another one can be that your accessory switch can be loose going to the fuel pump. I think its your ground though. Good luck! Hope this helps.
Have a nice day. -Steve

Dec 06, 2009 | 1989 Dodge Shadow

2 Answers

3.0 jaguar s type wont idle

Check breather pipes, common thing on the jags, dragging oil residue and bad air into throttle, look for oil residue on engine.Good luck Davelee

Mar 23, 2009 | 2000 Jaguar S-Type

1 Answer

Starts but does not idle

I had this problem, took wrench and tapped the idler arm motor with the key on. then start it and it would idle no problem I was also told that when this was not working right that the service engine light would come on

Jun 19, 2008 | 2000 Lincoln Town Car

Not finding what you are looking for?
Cars & Trucks Logo

64 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5687 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides