Ford Custom 500 Engine is misfiring 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

(58)

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

(58)

Engine is misfiring Inspection Service

How much does a Engine is misfiring Inspection cost?

On average, the cost for a Ford Custom 500 Engine is misfiring Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1971 Ford Custom 500V8-7.0LService typeEngine is misfiring InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
1965 Ford Custom 500L6-3.9LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1969 Ford Custom 500V8-7.0LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1973 Ford Custom 500V8-5.8LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
1970 Ford Custom 500V8-6.4LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
1967 Ford Custom 500L6-3.9LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1975 Ford Custom 500V8-5.8LService typeEngine is misfiring InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
1967 Ford Custom 500V8-6.4LService typeEngine is misfiring InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Ford Custom 500 Engine is misfiring Inspection prices

When an engines misfires, it’s usually readily apparent to the driver from the stuttering and jerking produced by the engine when one or more cylinders fails to fire properly, either because of ignition- or fuel-related issues. It is accompanied by a loss of power in direct proportion to the severity of the misfire.

It can be tricky for to track down the problem if the misfire only occurs under certain circumstances, for example, under load. Not all misfires occur across the operating spectrum.

For older vehicles:

On older, carbureted vehicles, the culprit will almost certainly be in the ignition system as older vehicles lack many of the sophisticated sensors that can cause a misfire. A vacuum leak or a faulty fuel pump can also cause this symptom as well. The first thing the mechanic will do is determine which cylinder or cylinders is misfiring, and the spark plug color is probably the best way to tell. The guilty plug will most likely be grayer than the others, which should tend toward brown coloring. If needed, the spark plug can be replaced.

The next step would be checking the wiring to that plug for cracks and deterioration, and replace as necessary.

For most modern vehicles:

In modern cars, misfiring will invariably be accompanied by a Check Engine light. In fact, checking for efficient combustion was the primary reason the U.S. government introduced the rules for OBD-II (on-board diagnostics, second generation). It was part of the push toward cleaner exhaust emissions.

A code reader will tell you which cylinder is to blame, but it may not say whether it is a problem relating to the injector serving that cylinder or the systems delivering the ignition spark. As with older vehicles, a look at the wires and spark plugs is a good idea. Checking them in the dark will sometimes reveal errant spark tracking, as will spraying them with a fine water mist.

One way mechanics check which spark plug is failing to hold its own is by running the engine at an idle speed high enough to produce the misfire, then removing leads from the coilpack (the unit that looks like the distributor we are used to seeing in older vehicles ) one by one. Most removals will cause a profound change in idling performance, but a defective wire will not. That will suggest that it’s either the spark plug or the coil serving that cylinder at fault. If a new spark plug at that cylinder does not remove the stumble, the mechanic may need to replace the coil pack or the wires as a set.

If it isn’t an ignition issue, then the injectors will need to be checked. A mechanic uses a multimeter to check the resistance value at each injector. It may be a bit difficult to reach them, sometimes requiring the removal of an engine cover and the intake manifold. The mechanic disconnects the injector, then touches the multimeter probes to the two connector prongs to read the value, in Ohms. If any of the injectors read outside of the specified values, they will need to be replaced.

Along the same lines, a fuel pump starting to go bad can also cause misfires or similar issues and can be diagnosed with a fuel pressure check of the entire system with the appropriate equipment. This should only be done by a qualified mechanic as the fuel system is highly pressurized and of course, fuel is flammable.

Common reasons for this to happen:

  • Faulty spark plugs or wires
  • Faulty ignition coil
  • Broken piston rings
  • Burnt or bent valves
  • Broken valve springs
  • Camshaft worn out
  • Fuel injector is not working

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the misfiring engine, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How important is this service?

A misfiring engine is accompanied by a loss of power, which makes this issue a critical one to correct promptly. Book a mechanic to perform a thorough inspection as soon as possible.

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

(58)

Rating Summary
55
1
0
1
1
55
1
0
1
1

Yahshif

10 years of experience
128 reviews
Yahshif
10 years of experience
Ford F-150 V8-5.4L - Engine is misfiring - Los Angeles, California
Yahshif arrived earlier then scheduled, which is great. He was friendly and very knowledgeable about his job, would definitely recommend and request him again, thank you.

Noe

36 years of experience
604 reviews
Noe
36 years of experience
Ford Explorer V6-4.0L - Engine is misfiring - Bothell, Washington
Noe arrived prior to the time as he was close by. Diagnosed the problem which was causing the misfire but wanted to did not want to start the repair immediately. He explained the diagnosis and provided a quote for the repair which should resolve the problem. I'll be scheduling the repair and using Noe services again. A pain-free easy process.

Patrick

33 years of experience
1422 reviews
Patrick
33 years of experience
Ford Windstar V6-3.8L - Engine is misfiring - Buda, Texas
Patrick is a reliable and capable mechanic. We trust him.

John

36 years of experience
444 reviews
John
36 years of experience
Ford F-150 V8-5.4L - Engine is misfiring - North Highlands, California
Knowledgeable and professional

Excellent Rating

(58)

Rating Summary
55
1
0
1
1
55
1
0
1
1
Number of Ford Engine is misfiring Inspection services completed
638+
services done by our mechanics
TOTAL NUMBER OF EXPERT Ford MECHANICS
1700+
experts on our platform

Recent articles & questions

How to Polish Exhaust Headers
Due Due to the degree of heat and amount of exposure that an exhaust header is exposed to from your system (https://www.yourmechanic.com/article/how-exhaust-systems-work), it is prone to showing signs of wear and tear. So, on occasion, you may wish to polish...
P0895 OBD-II Trouble Code: Shift Time Too Short
P0895 code means that there is an abnormality in the shift time between individual gears due to transmission blockage, failure, or dirty fluid.
How to Replace a Trunk Striker Plate
The trunk striker plates secures the lid when closed. It will need replacement if you hear rattling noises or see trunk warning lights on your dash.

Error code P0101 MAF sensor circuit range

Hi - do you mean the code is P0101 (rather than P1010)? The P0101 code is mass air flow sensor. In any case, given the behavior of your engine and the Check Engine scenario you describe, yes, a dirty Mass...

Noise from front end after a tire rotation. It sounds like four clacks and happens once each time the wheels make a full rotation.

Hi there. The noise is coming from the lug nuts. Check all of the lug nuts and make sure that they are tight. If the lug nuts (https://www.yourmechanic.com/services/rotate-tires) are tight, then look at the center of the wheel and make...

if my truck stalls as soon as i put it in gear is it the Torque converter?

Hi Julian. Thanks for contacting us today. It very well could be that your issue is caused by a worn out torque converter. However, it's also possible that you have a faulty fuel system component or damaged ignition system part...

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