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Engine Repair in Audubon, NJ

Engine trouble? A standard engine diagnostic at AutoBlast is $120 to $180, applied toward the repair if you approve the work, and every repair is quoted in writing first.

Gloved hands fitting a piston into the bore of a bare engine block mounted on an engine stand during a rebuild
An engine block being reassembled during a rebuild. Stock photo by Auto Tech on Pexels (free license), not an AutoBlast job.

Engine repair at AutoBlast starts with a diagnosis: a standard engine diagnostic is $120 to $180 at our Audubon shop, and the fee is applied toward the repair if you approve the work. From there, the repair can be as small as a $150 to $350 serpentine belt or as big as a multi-day engine rebuild. New Jersey's auto repair rules give you the right to a written estimate before work begins (N.J.A.C. 13:45A-26C.2), and we never start work without your approval. Call (856) 546-8880 or request an estimate.

Engine Repair Jobs We Handle in Audubon

These are the engine jobs AutoBlast already lists on this site. Each one has its own guide with the warning signs and the full price breakdown. Prices shown are AutoBlast's published ranges; where we have not published one, the job is quoted in writing after we look at your car.

Engine jobWhat it fixesAutoBlast price
Engine diagnosticsCheck engine light, misfire, rough idle, loss of power$120–$180 standard, applied toward the repair
Serpentine beltSquealing, cracked or slipping accessory belt$150–$350 belt only; $250–$650+ with tensioner or pulley
ThermostatEngine running hot, or staying cold with weak heat$180–$480
Spark plugsMisfires, rough idle, hard startsWritten quote for your engine
Water pumpCoolant leak at the front of the engine, overheatingWritten quote for your engine
Timing belt, full kitBelt due at its mileage, or worn tensioner and pulleysWritten quote for your engine
Head gasketCoolant loss, white smoke, milky oil, overheatingWritten quote after testing
Engine rebuildWorn internal parts or damage after a failureWritten quote after teardown

Not sure which row is yours? That is what the diagnostic is for. We read the codes, look at live data and test the parts before we quote, so you are not paying for a guess. The full process is on our engine diagnostics page.

How Much Does Engine Repair Cost?

It depends on which part failed. A belt or thermostat is a few hundred dollars. A head gasket or a rebuild runs into the thousands. Here are published national averages so you can sanity-check any quote, including ours. These are not AutoBlast quotes.

Engine repairNational averageSource
General diagnosis$122–$179RepairPal
Serpentine belt replacement$154–$212RepairPal
Spark plug replacement$288–$399RepairPal
Thermostat replacement$616–$716RepairPal
Water pump replacement$891–$1,135RepairPal
Timing belt replacement$918–$1,338RepairPal
Head gasket replacement$2,572–$3,386RepairPal
Professional engine rebuild$3,500–$6,000Kelley Blue Book
Remanufactured engine, mainstream car$5,000–$9,000Kelley Blue Book

Sources: RepairPal estimators for general diagnosis, serpentine belt, spark plugs, thermostat, water pump, timing belt and head gasket, all updated September 3, 2026, before taxes and fees, and not adjusted for your location. Engine rebuild and remanufactured engine ranges: Kelley Blue Book, Should I Get a Rebuilt or Remanufactured Engine? (July 11, 2025), which also says the average engine replacement at a dealership is close to $8,000, citing Cox Automotive data.

Add New Jersey sales tax. The rate is 6.625% (NJ Division of Taxation), and the Division's guide for repair shops says "the charges for parts and labor incurred in repairing automobiles are subject to New Jersey Sales Tax" (ANJ-6). On a $1,000 engine repair, that is $66.25 in tax.

What Each Engine Warning Sign Usually Means

Most engine repairs start with one of these warning signs. Here is what each one usually points to, and where to read more.

  • Check engine light on and steady: the car's computer has stored a fault. Book a diagnosis soon. Our check engine light codes guide explains the common codes.
  • Check engine light flashing: Kelley Blue Book says to pull over immediately and turn off the car, especially if the oil or temperature warning light is also on (Kelley Blue Book). Call (856) 546-8880 before driving further.
  • Temperature gauge climbing: a cooling problem such as the thermostat, water pump or radiator. Our overheating guide walks through the causes.
  • White smoke, coolant loss with no visible leak, or milky oil: classic head gasket warnings. See the head gasket repair cost guide before you keep driving.
  • Squeal at start-up or with the A/C on: often the serpentine belt or its tensioner.
  • Shaking, misfiring or rough idle: spark plugs, coils or another misfire cause. Our car shaking when accelerating guide covers the usual suspects.
  • Knocking, ticking or hissing under the hood: have it diagnosed before it gets louder.

Timing Belt, Water Pump and Head Gasket: The Bigger Jobs

Close-up of a toothed timing belt wrapped around a camshaft sprocket at the front of a car engine
A timing belt on its camshaft sprocket. Stock photo by Hebert Santos on Pexels (free license), not an AutoBlast job.

These three take the most labor, because the shop has to take apart a lot of the engine to reach the part.

Timing belt. RepairPal notes the job can also mean removing motor mounts, cooling fans, the radiator and other accessories, and that the belt has to be set to the right tension. At AutoBlast we always recommend the full kit (belt, tensioner, idler pulleys and water pump), and most timing belt replacements are finished the same day. Our timing belt guide explains belt vs. chain and when yours is due.

Water pump. On many engines the timing belt drives the water pump, so the pump comes out with the belt. RepairPal's description of the job: the cooling system is drained, the belt and pulleys are removed, the pump and gasket are replaced, and the system is refilled. See our water pump guide.

Head gasket. We test before we quote: cooling-system pressure testing, a block test for combustion gases, and a compression or leak-down test when needed. Then you get a repair-or-replace conversation before the engine comes apart. RepairPal says the replacement itself typically takes several days. The full breakdown is in our head gasket repair cost guide.

Bigger jobs like head gasket replacement or other engine work typically take 1 to 3 days at our shop, depending on parts availability. We give you a timeline before we start.

Repair, Rebuild or Replace the Engine?

Gloved hands placing valves into an aluminum cylinder head on a workbench
Valves going back into a cylinder head. Stock photo by Auto Tech on Pexels (free license), not an AutoBlast job.

When an engine has a serious failure, there are three ways to go: fix the part that failed, rebuild the engine, or put in a different engine. Kelley Blue Book lays out the trade-off:

  • Rebuild: usually the least expensive of the full-engine options, at $3,500 to $6,000. Only the worn parts are replaced.
  • Remanufactured engine: about $5,000 to $9,000 for a mainstream car. It is restored to original standards with new components.
  • New engine from the automaker: the average dealership engine replacement is close to $8,000, and a high-output engine can cost three or four times that.

Our rule of thumb, from our head gasket guide: a repair usually makes sense when the head and block are not cracked, the engine did not run severely overheated, the mileage is reasonable, and the car is worth at least two to three times the repair cost. A replacement engine may make more sense when the head is warped beyond machining limits, the block is damaged, the engine has 200,000+ miles, or the repair costs close to what a good used or remanufactured engine would. Sometimes the honest answer is to put the money toward a different car, and we will tell you that before the engine comes apart.

Your Rights on an Engine Repair Estimate in New Jersey

New Jersey's auto repair rules (N.J.A.C. 13:45A-26C.2) protect you on any engine job. In plain English:

  • A written estimate before work starts. It can be a not-to-exceed price, an exact price broken down into parts and labor, or a price for a specific repair. You can only give up this right by signing a written waiver.
  • A diagnostic charge you agree to in advance. If you then have the repair done at the same shop, you are not charged twice for diagnosis that the repair needed anyway.
  • No surprise charges. A shop cannot bill more than the estimate without your OK, given after it finds the estimate is not enough and before the extra work is done.
  • Your old parts back, if you ask before work starts. Exchange (core) parts and parts too big or heavy to return are exempt.
  • An itemized invoice with parts and labor listed separately, stating whether each part is new, rebuilt, reconditioned or used. That matters on engine work, where rebuilt and exchange parts are common.
  • A written copy of any guarantee the shop gives on the work.

How to Tell if an Engine Repair Shop Is Good

The Federal Trade Commission's advice (FTC, Auto Repair Basics) comes down to a few questions you can ask any shop, including ours:

  1. Has the shop worked on your make and model before?
  2. Is there a diagnostic charge, and what if you take the repair elsewhere?
  3. Does it charge a flat rate for labor or the actual hours worked?
  4. Will the written estimate list the condition, the parts and the labor, and say the shop will call you before going over it?
  5. Will you get the replaced parts back?

The FTC also suggests a second opinion for expensive or complicated repairs. On an engine job that is reasonable, and a written diagnosis makes it easy to compare.

Keep Your Engine Out of the Shop

The FTC warns that skipping simple maintenance, like changing the oil or checking the coolant, can lead to costly breakdowns, and says to follow the maintenance schedule in your owner's manual. The engine services that matter most:

  • Oil changes at the interval your manual gives for your type of driving
  • Coolant service through our fluid services, so the cooling system does not cook the head gasket
  • Spark plugs and the timing belt at the manufacturer's mileage
  • A diagnosis as soon as the check engine light comes on, before a small fault becomes a big one

What to Tell Us When You Call

AutoBlast is at 21 S. White Horse Pike in Audubon, NJ, on Route 30, and we work on domestic and import engines for drivers across Camden County. When you call (856) 546-8880 or send the estimate form, these details help us quote faster:

  • Year, make, model, engine size and mileage
  • Which warning lights are on, and whether the check engine light is steady or flashing
  • When the problem happens: cold start, highway, idle, under load
  • Any recent work on the car, and whether it is still safe to drive in

Signs You Need Engine Repair

  • Check engine light on (steady), or flashing (pull over and call before driving further)
  • Temperature gauge climbing toward hot, or steam from under the hood
  • White exhaust smoke, coolant loss with no visible leak, or milky oil
  • Squealing at start-up or when the A/C comes on
  • Misfires, shaking, rough idle or hard starts
  • Knocking, ticking or hissing from the engine
  • Loss of power when accelerating, or a sudden drop in fuel economy

What to Expect

  1. 01

    Call (856) 546-8880 or send the estimate form with your symptoms, warning lights and mileage

  2. 02

    Diagnosis: codes, live data and hands-on tests (pressure, block, compression or leak-down tests when needed). A standard diagnostic is $120 to $180, applied toward the repair if you approve it

  3. 03

    Written estimate with parts and labor, plus a repair-or-replace conversation before any major teardown

  4. 04

    Nothing starts without your approval, and any added work needs your OK first

  5. 05

    Repair completed, codes cleared, and a test drive to confirm the fix

  6. 06

    Itemized invoice listing parts and labor separately

Frequently Asked Questions

How much does engine repair cost?

It depends on which part failed. At AutoBlast in Audubon, a standard engine diagnostic is $120 to $180, a belt-only serpentine belt replacement is $150 to $350 and a thermostat replacement is $180 to $480; bigger jobs are quoted in writing for your engine. For comparison, RepairPal's national averages (September 3, 2026, before tax) are $918 to $1,338 for a timing belt and $2,572 to $3,386 for a head gasket, and Kelley Blue Book puts a professional engine rebuild at $3,500 to $6,000. Those outside figures are not AutoBlast quotes.

How long does engine repair take?

A diagnosis usually takes 30 to 90 minutes. Most timing belt replacements at AutoBlast are finished the same day. Bigger jobs like head gasket replacement or other engine work typically take 1 to 3 days, depending on parts availability, and we give you a timeline before we start.

Is it worth repairing an engine?

Often, yes. A repair usually makes sense when the head and block are not cracked, the engine did not run severely overheated, the mileage is reasonable, and the car is worth at least two to three times the repair cost. If the block is damaged, the head is warped beyond machining limits, or the repair costs close to a used or remanufactured engine, a replacement engine or a different car may make more sense. We walk you through the math before the engine comes apart.

Can I drive with a flashing check engine light?

No. Kelley Blue Book says to pull over immediately and turn off the car when the check engine light is flashing, especially if the oil or temperature light is also on, because driving on can cause serious and expensive damage. Call (856) 546-8880 before driving further.

Does the diagnostic fee go toward the engine repair?

Yes. At AutoBlast, if you approve the repair we find, the diagnostic fee is applied toward the repair total. New Jersey's auto repair rules also say a diagnostic charge must be agreed to in advance, and that diagnosis the repair needed anyway is not billed twice if you have the repair done at the same shop.

Do I get a written estimate before engine work starts in New Jersey?

Yes. Under N.J.A.C. 13:45A-26C.2, a New Jersey repair shop must give you a written estimate before work starts, unless you sign a written waiver. The shop cannot charge more than the estimate without your OK, must return replaced parts if you ask before work starts (exchange parts excepted), and must give you an invoice that lists parts and labor separately and says whether parts are new, rebuilt, reconditioned or used.

Is sales tax charged on engine repair labor in New Jersey?

Yes. The NJ Division of Taxation's guide for auto repair shops (ANJ-6) says the charges for parts and labor in repairing automobiles are subject to New Jersey sales tax, which is 6.625%. On a $1,000 engine repair, that is $66.25.

Do you repair import engines?

Yes. We work on domestic and import engines, and our diagnostic tools include manufacturer-specific software for European makes. If your car has an unusual engine, tell us the make, model and engine size when you call (856) 546-8880 and we will tell you up front whether we can take the job.

What is the difference between engine diagnostics and engine repair?

Diagnostics finds the cause: codes, live data and hands-on tests that confirm which part failed. Engine repair fixes it. At AutoBlast the diagnosis comes first, you get a written estimate for the repair, and nothing is replaced until you approve it.

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Engine Diagnostics

Advanced OBD-II and manufacturer-specific diagnostics for check engine lights, ABS lights, transmission codes, and electrical faults at our Audubon NJ shop.

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Oil Change

Conventional, synthetic blend, and full synthetic oil changes with premium filters and free multi-point inspection in Audubon NJ.

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Need Engine Repair? Call Us Today

Tell us what the engine is doing. We diagnose first and give you a written estimate before any work starts.