Question about 2005 Ford F-150

1 Answer

Idle problem idles fine until you slow down and then the rpm drop really fast down to about 250 rpms and if you happen to be turning it can kill the engine when in park its fine and doesnt seem too have lost any power

Posted by on

  • m-2be1ask1 Dec 17, 2008

    idle up and down in park and drive

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 160 Answers

Iac motor sounds like its gone bad

Posted on Nov 11, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

1986 Mercury grand Marquis cutting out when slowing down nearly impossible to start. Oil changed, new air filter, new plugs and wires, new fuel filter...?


I had an experience with a 1984 T-Bird with a 302. The 1986 may have the same system. With that car there was a temperature sensor that affected the idle speed once the car was close to warming up.
With even later models there is a "cold start sequence" which is an electronic way of replacing the ancient choke. The "cold" feature set the fuel mix and the RPM and made starts easier. Now you did not say if the starting problem was when hot or cold or both.

The poor performance when slowing down can be related to the idle rpm being set too low once the thermal switch cuts out. What happens is someone tunes the engine for a rpm that may be correct for the car, but the thermal switch has not dropped the rpm yet. Then when the car really heats up, the idle drops even lower and when you take off your foot from the throttle, the throttle closes too much and the engine cuts out when you are slowing.

Put in a new thermostat. The idle settings can not be set until the thermal switches activate to a run position. Also you may have some vacuum lines crossed which are making the cold and hot cycles reverse. There should be a label with vacuum line routing shown stuck on a part that holds the radiator.

May 31, 2015 | Mercury Cars & Trucks

1 Answer

1997 acura cl 2.2 revs up to 1500 rpm and down to 1000 rpm just several seconds after start


Cars are design to run at a higher idle at start up to warm them up quick. There is a sensor that reads water temperature and tells your car's computer how fast to idle. Your RPMs seem slightly high but not out of the norm. Does idle ever drop to around 600/800 after about a minute? If not, your engine temperature sensor maybe defective.

Mar 16, 2014 | Acura Cars & Trucks

1 Answer

2000 mercury cougar engine speed stays up when gas pedal is release, increase when pedal is release and shifting gears, takes 3 seconds or more to come down to idle when gas pedal is release, will hold at...


You have a mechanical bind. Disconnect the main linkage and work it all by hand. Everything should be free and slopy. Aerosol carb cleaner will help, but only when the engine is not running.

May 30, 2017 | Mercury Cougar Cars & Trucks

1 Answer

2008 pt cruiser problems. At idle with Air Cond on get frequent RPM drop. 50-100 RPMs. Withour Air Condition on car idles fine (no drop) Also can hear a single click sound when drop occures.


The click sound would be the air conditioner compressor engaging, the engine will slow down do to the additional load. If it idles rough you probably need to think about cleaning the throttle body.

Oct 04, 2012 | 2008 Chrysler Pt Cruiser

2 Answers

Engine idles rough at red lights begins loping rpms drop to almost killing, then cycles back to normal, then repeats rough idle drop in rpms and loping, back and forth until I rev engine or take off


You could have a clogged fuel filter, if you haven't changed it in awhile. You could have a leak in the intake system somwhere also. When you slow down, you get less power to the engine. It may need spark plugs and wires as well, if in need for a tune up.

Mar 02, 2011 | 2001 Nissan Altima

1 Answer

Rpms fall when backing off on throttle


engine speed sensor may be faulty

Jul 19, 2009 | 1996 Subaru Legacy

1 Answer

High idle 1997 Madza 626 4 cylinder auto transamission


Idle control valve...

HIGH DOLLAR PART, 400 to 500 smackers....

You can try cleaning it, I beleive that is the same 2.0 liter motor they put in the ford Probe? I could be wrong, I know they 2.0 has issues with the idle control valve..

Anyway, if you want to try cleaning it, try this link... its to a Probe, but should be the same as yours...

http://www.geocities.com/adamk01452/IAC_Clean.html

If its not the same as that, you can probably search the net and find a site specific to your car... but it really should be the same motor, even the haynes manual for the Probe has sections for both the Probe and 626 in it...

Good Luck!!!

Apr 22, 2009 | 2001 Mazda 626

2 Answers

Slow acceleration, high rpm


This sounds normal to me! The engine will read that rpm when accerlerating lightly. It is the stall of the torque convertor. The oil pressure will always be higher when the rpm's are higher, or when the oil is thicker - cold.

Virbration? That is a different story. Oil won't cause that.

Mar 25, 2009 | 1992 Buick LeSabre

Not finding what you are looking for?
2005 Ford F-150 Logo

Related Topics:

214 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

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

Answer questions

Manuals & User Guides

Loading...