Infiniti QX4 Timing Belt Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(3)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(3)

Timing Belt Replacement Service

How much does a Timing Belt Replacement cost?

On average, the cost for a Infiniti QX4 Timing Belt Replacement is $672 with $224 for parts and $448 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2000 Infiniti QX4V6-3.3LService typeTiming Belt ReplacementEstimate$944.68Shop/Dealer Price$1077.01 - $1428.64
1999 Infiniti QX4V6-3.3LService typeTiming Belt ReplacementEstimate$1105.64Shop/Dealer Price$1232.24 - $1579.58
1998 Infiniti QX4V6-3.3LService typeTiming Belt ReplacementEstimate$1032.64Shop/Dealer Price$1157.82 - $1504.10
1997 Infiniti QX4V6-3.3LService typeTiming Belt ReplacementEstimate$915.85Shop/Dealer Price$1038.42 - $1382.73
Show example Infiniti QX4 Timing Belt Replacement prices

What is a timing belt and how does it work?

An engine timing belt is a fiber reinforced, toothed drive belt manufactured using durable compounds such as highly saturated nitrile. The timing belt allows the crankshaft to drive the camshafts in the cylinder head at half the RPMs of the crankshaft. The camshafts then open and close the engine’s intake and exhaust valves in time with the movement and position of the pistons in the engine.

Timing Belt

When to replace the timing belt?

  • Every 60k-90k miles. If an engine is equipped with a timing belt, the timing belt must be replaced at the service interval specified by the vehicle manufacturer regardless of whether or not any problem is visible, typically in the range of 60,000 to 90,000 miles. Your vehicle owner’s manual should state the specific service interval.
  • Engine stops abruptly or will not start. Occasionally, timing belts can break, or skip, while the engine is running.
  • Rough engine operation. The molded, reinforced teeth on the timing belt engage gears on the crankshaft and camshafts. After many tens of thousands of miles, the teeth can wear or break, or the belt can stretch, thus causing the belt to jump position on the crankshaft or camshaft gears. Should the belt jump, the engine will run poorly and perhaps not at all.
  • Banging or clanking engine noise. On some engines, if the timing belt has jumped, the pistons and valves can collide and there will be noise and damage. These engine designs are referred to as interference engines. If your car has an interference engine, replacing the timing belt according to the maintenance schedule will minimize the chance that a belt failure will cause engine damage.

How do mechanics replace the timing belt?

Engine designs vary, and thus the replacement procedure will vary, but broadly, the procedure is as follows:

  • Disconnect the battery ground cable.
  • Once the engine is cold, set the crankshaft to top dead center with the number one piston on the compression stroke. Remove crankshaft pulley.
  • Remove all accessories interfering with the removal of the timing belt covers.
  • Remove timing belt covers. Lock camshafts, as required, and note position of camshaft timing marks. Remove timing belt tensioner and idler pulleys. Remove timing belt.
  • If replacing the water pump, do so at this time, and of course drain the cooling system first. If the engine cooling system thermostat is only accessible with water pump replacement, the thermostat should be replaced as well.
  • Installation of the new timing belt includes all of the above steps, performed in reverse, following strict guidelines to assure camshaft and crankshaft (and balancing shaft, if equipped) are in perfect alignment after tensioner has been set.
  • Upon completion of the installation, the engine crankshaft is turned by hand 720 degrees and the correct position of the timing marks on the crankshaft and the camshafts is confirmed.
  • The vehicle is road tested to confirm normal operation and a service sticker is affixed to the engine noting the date of belt replacement and the vehicle mileage.

Is it safe to drive with a timing belt problem?

No, were a worn out timing belt to snap while underway, perhaps on a highway, it creates a risk of complete loss of engine power while surrounded by fast moving vehicles. Once your vehicle has reached the recommended replacement mileage for the belt, you can eliminate the risk of sudden and unexpected timing belt breakage by having it replaced. If your engine is of the interference type, it is especially important to replace the belt according to the maintenance schedule because sudden breakage of the timing belt, while the engine is running, will likely cause significant damage to internal engine components such as the valves and pistons.

When replacing the timing belt keep in mind:

  • An interference engine should be carefully inspected before a broken timing belt is replaced because it may have sustained damage that will have to be repaired prior to installing a new belt.
  • The timing belt system includes idler pulleys and a belt tensioner. These components should be replaced along with the belt.
  • On some cars, the timing belt drives the engine’s water pump. Mechanics will usually recommend replacing the water pump at the same time that the timing belt is replaced.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0

Excellent Rating

(3)

Rating Summary
3
0
0
0
0
3
0
0
0
0
Number of Infiniti QX4 Timing Belt Replacement services completed
33+
services done by our mechanics
TOTAL NUMBER OF EXPERT Infiniti MECHANICS
1000+
experts on our platform

Recent articles & questions

P2653 OBD-II Trouble Code: B Rocker Arm Actuator Control Circuit Low Bank1
P2653 means an open or shorted circuit in the B rocker arm actuator control circuit in bank 1 due to broken oil control valve or low oil levels.
How to Get Someone to Take Over Your Lease Payments
When you lease a vehicle, you agree to a set term that you will make lease payments (https://www.yourmechanic.com/article/how-to-figure-out-your-monthly-car-lease-payment) on a vehicle. Leases can often be an excellent option to car ownership because after the term is complete, you can simply...
How Long Does an Emergency Brake Control Last?
No No matter what vehicle you drive, it is equipped with an emergency parking brake. While some people use this each and every day, others never end up using it. It is meant to stop your car from rolling if...

Misfires on cylinder 3

Hello. Instead of only replacing the coils between cylinders 2 and 3, I think you should replace all of the coils with new coils (https://www.yourmechanic.com/parts/ignition-coil), if you haven’t done so yet. The results of your compression test show that you...

Engine dies

Hi There, It sounds like you may have a fuel supply problem in getting the proper amount of fuel to the fuel injectors. As you know, when you turn the key to on, the fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) is activated and...

Periodic TPMS fault

Yes, firmware, the BCM (body control module), temperature outputs, the harness, faulty batteries, could all be potential causes of this sort of intermittent fault. The problem you having is probably not common though because I do not see a pattern...

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 (844) 997-3624 · hi@yourmechanic.com