Ford LTD Engine idle speed is high Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(8)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(8)

Engine idle speed is high Inspection Service

How much does a Engine idle speed is high Inspection cost?

On average, the cost for a Ford LTD Engine idle speed is high Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1968 Ford LTDV8-7.0LService typeEngine idle speed is high InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1976 Ford LTDV8-7.5LService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1970 Ford LTDV8-5.0LService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1972 Ford LTDV8-5.8LService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1978 Ford LTDV8-6.6LService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1974 Ford LTDV8-5.0LService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1969 Ford LTDV8-6.4LService typeEngine idle speed is high InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1971 Ford LTDV8-5.8LService typeEngine idle speed is high InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Ford LTD Engine idle speed is high Inspection prices

What is engine idle speed and how is it maintained?

Engine idle speed is the speed, measured in revolutions per minute (RPM) an engine is designed to run at when the engine is fully warmed up and the vehicle is stopped in park or neutral. Typically, the idle speed will be set at a value in the range of 600 to 800 RPM, but the exact value will depend on the number of engine cylinders and whether the vehicle is equipped with a manual or automatic transmission. Idle speed is maintained by the throttle body working in conjunction with the vehicle’s powertrain control module.

When to check for idle speed issues:

  • RPM on dash gauge does not match OEM specification. Many cars have RPM gauges. If the engine speed displayed on the gauge does not match the original equipment manufacturer (OEM) specification on the underhood label, there is probably something wrong.
  • Engine is idling higher than normal. If there is no RPM gauge but the engine sounds like it is turning faster when idle, a mechanic can use an instrument to measure the actual engine speed.
  • Harsh engagement in drive. If the idle speed is too high, the vehicle will jump forward when placed in drive.
  • Excessive brake effort is required to hold vehicle at a stop. If idle speed is normal, only a very light force on the brake pedal will be necessary to prevent forward motion in drive.

How do mechanics adjust or repair incorrect idle speed?

The repair procedure depends on the exact cause of the high idle. The below lists common causes of high idle and in each case, the appropriate vehicle system, components, and parts involved would be inspected, removed for repairs, and/or replaced as needed.

Faulty Fuse: In the majority of vehicles, engine idle speed is controlled via an idle control valve (ICV). A faulty or blown fuse in other electronically controlled systems can cause the Idle Air Control (IAC) motor to malfunction, leading to a higher than normal engine idle speed.

Faulty Idle Air Control Valve (ICV): Some cars are equipped with an idle air control valve to maintain idle speed. This part can malfunction due to excessive carbon buildup in the intake manifold.

Vacuum Leak: On any engine, a vacuum leak will cause a high engine idle as the oxygen sensor detects lean operation and the engine computer then tries to compensate, which can result in abnormal idle. Malfunctioning Throttle: A malfunctioning throttle system can cause both a high or low idle as well as an engine stall. A dirty air intake or cracked air intake tube is often the culprit. Computer Malfunction: If the powertrain control module is malfunctioning, idle speed may be affected.

Is it safe to drive with incorrect idle speed?

No. High idle speed could make your vehicle difficult to control and were the idle speed to suddenly and unexpectedly increase to really high levels, you could experience unintended acceleration. Even moderately high idle speed, that is up to 1,200 RPM will make it more difficult to slow your vehicle when stopping and, once stopped, there remains the risk of your foot coming off the brake and the car jumping ahead. High idle speed also wastes gas and can be distracting as the vehicle does not perform as expected.

When addressing idle speed issues, keep in mind:

  • Related functions, such as the idle up function when the air conditioner is turned on, will be inspected by a mechanic during the repair of a high idle problem.
  • Prior to replacing parts, such as the throttle body, the mechanic will also need to rule out electrical causes of incorrect idle speed as well as physical causes such as vacuum leaks.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Ford mechanics

Real customer reviews from Ford owners like you.

Excellent Rating

(8)

Rating Summary
6
2
0
0
0
6
2
0
0
0

Godwin

24 years of experience
253 reviews
Godwin
24 years of experience
Ford LTD * - Pre-purchase Car Inspection - Buena Park, California
I found my dream car on the internet but it was located in California. I needed someone in the local area to check out the car for me before I made the purchase. Fortunately I found out about yourmechanic.com and Godwin was the mechanic assigned to handle my situation. I could not be more happy with the service he provided. Nothing like having peace of mind when making a large purchase sight unseen. Thanks Godwin for the professional service.

Toby

10 years of experience
100 reviews
Toby
10 years of experience
Ford LTD V8-5.0L - Ball Joint Front Replacement (Upper Left, Lower Left) - Bedford, Texas
Job well done in a timely fashion.

Kiri

20 years of experience
372 reviews
Kiri
20 years of experience
Ford LTD V8-5.0L - Car is slow to accelerate - Philadelphia, Pennsylvania
Knowledgable mechanic blended with a great attitude. Took time to explain and teach.

Edwin

40 years of experience
36 reviews
Edwin
40 years of experience
Ford Mustang V8-5.8L - Engine idle speed is high - Mount Pleasant, South Carolina
Edwin showed up on time and was very thorough in checking the car. He was able to answer all my questions in a way I would understand.

Excellent Rating

(8)

Rating Summary
6
2
0
0
0
6
2
0
0
0
Number of Ford Engine idle speed is high Inspection services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Ford MECHANICS
1700+
experts on our platform

Recent articles & questions

Windshield Laws in South Carolina
Drivers Drivers in South Carolina know they are required to follow many different traffic laws when traveling the roadways throughout the state. However, there are also additional regulations concerning the safety and integrity of the equipment on the vehicle. The...
P0260 OBD-II Trouble Code: Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector)
P0260 P0260 code definition Injection Pump Fuel Metering Control “B” Intermittent (Cam/Rotor/Injector) What the P0260 code means P0260 is an OBD-II generic code that the injection pump fuel metering control valve circuit has intermittent current flow when the engine control...
Is an Aftermarket Car Part as Good as an OEM Car Part?
Aftermarket parts are often seen as being of lower quality than OEM car parts but they offer more variety and can be a great cheap auto part option.

Running lights randomly turning on when car is off/blinker stick not staying in on position

The BCM would need to be tested to see if it is getting the proper signals from the headlight switch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-headlight-switch) and turn signal switch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-turn-signal-switch). The BCM is a major problem and and has caused various problems with the...

When replacing my ball joints on my 2005 dodge Strauss do I need to replace the control arms as well

Hi there. When changing out the ball joints, you don't need to change the control arms if you have a replacement ball joint. However, if you are wanting to replace the bushings and the ball joint, then you may get...

Lexus is250 2006 electronic power steering problem

It is unlikely the battery terminal connection is a cause of the fault you are describing. If they have actual evidence of a fault related to the "connection", they should have provided that information to you. If no evidence is...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com