Jeep Grand Cherokee WK 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

(6,766)

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

(6,766)

Engine idle speed is high Inspection Service

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

On average, the cost for a Jeep Grand Cherokee WK Engine idle speed is high Inspection is $105 with $0 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2022 Jeep Grand Cherokee WKV6-3.6LService typeEngine idle speed is high InspectionEstimate$124.99Shop/Dealer Price$133.39 - $139.69
Show example Jeep Grand Cherokee WK 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 Jeep mechanics

Real customer reviews from Jeep owners like you.

Excellent Rating

(6,766)

Rating Summary
6,421
188
36
24
97
6,421
188
36
24
97

Mike

13 years of experience
176 reviews
Mike
13 years of experience
Jeep Wrangler L6-4.2L - Engine idle speed is high - Rolesville, North Carolina
Second time using Mike, pleased both times.

Rodney

36 years of experience
561 reviews
Rodney
36 years of experience
Jeep Grand Cherokee V8-4.7L - Engine idle speed is high - Elk Grove, California
Very professional and friendly. Explain to you what the problem and what he did.

Mathew

24 years of experience
93 reviews
Mathew
24 years of experience
Jeep Wrangler L4-2.5L - Engine idle speed is high - Jacksonville, Florida
Matthew arrived at the appointed time. He was friendly, knowledgeable and helpful. He clearly was interested in identifying the exact mechanical issue I was experiencing, which he found. In addition, he identified another issue which would probably be the cause of another mechanical in the near future.

Jahmar

18 years of experience
36 reviews
Jahmar
18 years of experience
Jeep Liberty V6-3.7L - Oil Change - West Palm Beach, Florida
Excellent experience!

Excellent Rating

(6,766)

Rating Summary
6,421
188
36
24
97
6,421
188
36
24
97
Number of Jeep services completed
74426+
services done by our mechanics
TOTAL NUMBER OF EXPERT Jeep MECHANICS
1300+
experts on our platform

Recent articles & questions

The Best Used Cars to Buy for First Time Car Owners
Owning Owning your very first car is an exciting time in a person’s life. Likely you want to put a lot of thought and research into the process to ensure you get something that meets your needs, is fun to...
P2338 OBD-II Trouble Code: Cylinder #3 Above Knock Threshold
P2338 P2338 Code Definition A P2338 code is a generic powertrain code related to an ignition-related problem, such as an engine misfire. It appears when the engine control module (ECM) has received a voltage reading outside the allowed variances from...
P0843 OBD-II Trouble Code: Transmission Fluid Pressure Sensor A Circuit High
P0843 means that the fluid pressure is not what is being read by the sensor due to a faulty sensor, solenoid or due to dirty fluid or blocked lines.

Coil spring tower detached from the frame and steering quit

Hello. I hate to say that this is a common problem, and there really is not alternative way of fixing it. When the top mount wears out, this will occur causing the steering to bind. The only way to fix...

1993 Nissan Altima transmission doesnt shift into 3rd gear

It sounds like you may have a transmission issue. The throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) plays a part in knowing if the transmission needs to downshift, but if you have a sticking shift valve, or a pressure control valve issue, that...

increased engine over load message.

Hi there. The message is coming on for the catalytic converter overheating. A misfire or leaking injector will cause the catalytic converter to overheat as raw fuel enters the exhaust system. Check the engine for a misfire and see which...

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