Engine Repair in Phoenix, AZ

When your engine is not running right, our certified technicians diagnose the real problem and repair it correctly. Engine repair in Phoenix that lets you drive away with confidence.

Pete Kelley's Auto Service logo - Trusted Phoenix auto repair and wheel alignment shop since 1972.

Is Your Engine Running Rough or Losing Power?

A knocking sound, rough idle, stalling or a check engine light are your engine’s way of asking for help. Ignoring these signs can allow a smaller problem to become a more expensive repair. We diagnose the true cause, not just the symptom, and explain exactly what your engine needs.

From engine misfire repair and sensor problems to timing chain replacement, an engine rebuild or a full engine overhaul, our team handles a wide range of engine problems. For dependable engine repair in Phoenix, AZ, drivers turn to the engine mechanics who have been keeping Valley vehicles running since 1972.

We regularly service engines in Honda, Acura, Nissan, Infiniti, Buick and Chevrolet vehicles. We will show you the problem and tell you honestly whether the engine repair cost is worth it for your vehicle.

“We find the real cause of engine trouble and fix it right the first time – no guesswork, no upselling.”  

-Pete Kelley’s Team

Pete Kelley's Auto Service logo - Trusted Phoenix auto repair and wheel alignment shop since 1972.

WHY CHOOSE US?

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Accurate Diagnostics

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Transparent Pricing

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Same-Day Service

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Warranty-Backed Repairs

Engine Repair in Phoenix You Can See for Yourself

Engine work is where honest diagnosis matters most, because the numbers get big fast. In this video, George shows an engine opened up on our lift. You’ll see how we pinpoint the real problem before recommending a repair, a rebuild, or a replacement.

Every Engine Repair Starts With a Diagnosis

Before we quote anything, we:

  • Scan the codes
  • Run compression and leak-down tests
  • Trace oil leaks to their source
  • Check the timing components and cooling system

A misfire could be a spark plug, a coil or something deeper, and each has a very different price. We show you the evidence, explain whether the repair makes sense for your vehicle’s value, and give you options in writing, including rebuilt engines where they are the better value. Every engine repair we complete is backed by the NAPA AutoCare nationwide warranty.

What Your Engine Is Telling You

These three symptoms point to three different problems:

  • A rough idle: often a misfire or vacuum leak. Rough idle repair starts with a scan.
  • A burning oil smell: usually a leaking valve cover or oil pan gasket. See our guide to oil leak repair.
  • Knocking under load: internal wear that needs attention now.

A flashing check engine light means stop driving and get a professional diagnostic. Hesitation can trace back to the fuel system, and repeated overheating often starts in the cooling system before it becomes a head gasket repair. Regular oil changes are the cheapest protection an engine gets. Our list of five warning signs your engine needs attention covers the rest.

Do not ignore a check engine light. Call or schedule online and we will diagnose it, show you the problem, and put the number in writing first. Major repairs qualify for Synchrony financing.

SIGNS YOU NEED ENGINE SERVICE

Stay alert to these common warning signs – fix them early and save on bigger repairs.

1

Check engine light

A steady or flashing light points to anything from a loose sensor to a serious misfire; a scan tells us exactly what’s wrong.

2

Knocking, ticking, or unusual noises

New sounds from under the hood often signal worn internal parts or low oil pressure that need attention fast.

3

Rough idle or stalling

If your engine shakes at a stop or hesitates when you accelerate, it may have a misfire, fuel, or air-flow issue.

4

Low gas mileage or losing power

Working harder for less usually means your engine isn’t running as efficiently as it should.

STAY COMFORTABLE & PAY OVER TIME

An unexpected engine repair can be tough on your budget. That’s why we offer flexible financing through our trusted partner Synchrony. Qualified customers can divide their repair costs and enjoy competitive rates.

Synchrony Bank car care credit card for easy auto repair financing and NAPA EasyPay 36-month warranty at Pete Kelley's Auto Service.
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No Annual Fee

 Access the credit line you need with zero annual fees.

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Convenient Monthly Payments

Spread the cost of a larger engine repair into manageable monthly installments.

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Quick Approval - Use Instantly

Apply in minutes and get instant approval so you can get back on the road faster.

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Extended Coverage

Finance repairs over $199 with term options up to 30 months

READY TO GET YOUR ENGINE RUNNING RIGHT?

Book your appointment today and get an honest diagnosis you can trust.

Trusted Engine Repair in Phoenix Since 1972

For more than 50 years, Phoenix drivers have trusted Pete Kelley’s Auto Service as their engine repair shop. Our ASE-certified mechanics work on every make and model, from routine tune-ups to a major engine overhaul, with the training and equipment to get the repair right the first time.

As a NAPA AutoCare center, we back our engine repair services with a nationwide warranty honored at NAPA-certified shops across the country  coverage that follows you long after you leave our garage. With a 4.9-star rating from hundreds of customer reviews, we’ve built our reputation on honest pricing, dependable service, and repairs that last.

From check-engine-light diagnostics and engine repair to transmission service, cooling system and radiator repair and advanced diagnostics, our award-winning team keeps you confidently on the road. Schedule an appointment. We appreciate you choosing Pete Kelley’s.

Thanks for choosing Pete Kelley’s!

NAPA AutoCare Peace of Mind Warranty seal for 24 months or 24,000 miles of protection at Pete Kelley’s Auto Service in Phoenix.
*Restrictions may apply

in case using used parts where warranty is mentioned

TRUSTED AUTO CARE SINCE 1972

Our customers choose us for our ethics, experience, and award-winning service.

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Ethical Service

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Affordable Pricing

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Certified Technicians

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Trusted by Locals

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Award-Winning

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Family-Owned

300+ Reviews

Across Platform

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5-STAR RATED EVERYWHERE

Real feedback, real ratings – across the platforms that matter most.

GET A COMPLIMENTARY QUOTE

Getting a quote is quick & easy. Answer a few questions, and you can get an idea of the cost for any needed repairs today!

FAQs

What causes an engine misfire?

The most common causes are worn spark plugs, failing ignition coils, clogged fuel injectors, vacuum leaks and, less often, low compression. A misfire can damage the catalytic converter, so engine repair in Phoenix starts with a diagnostic to find which cylinder and which cause.

A steady light means a fault has been stored. It’s usually safe for a short time, but book a diagnostic soon. A flashing light means an active misfire that can overheat the catalytic converter, so stop driving and call (602) 759-9354.

Most oil leaks come from valve cover gaskets, oil pan gaskets or crankshaft seals, which harden and shrink with heat and age. Oil dripping on hot exhaust parts causes a burning smell and can damage belts and hoses. Fixing a leak early is much cheaper than repairing what it damages.

Follow your owner’s manual, which is usually somewhere between 60,000 and 105,000 miles. On many engines a broken timing belt causes serious internal damage, so don’t skip it. Timing chains have no set interval, but a rattle at startup can mean the chain or tensioner is wearing.

It depends on the repair cost, the car’s value and its overall condition. Pete Kelley’s gives you an honest repair-versus-replace answer, including rebuild and replacement engine options, with a written estimate. Engine repair in Phoenix often qualifies for Synchrony financing.

Engine rebuild cost and engine replacement cost depend on the engine, the damage found and the parts chosen. We diagnose first, then give you written prices for each option so you can compare them with the vehicle’s value.

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