0:00 / 0:00
Ron Ananian, The Car Doctor - April 11, 2026 - Hour 2 - The Chevy Cruze Belt Failure Story

Ron Ananian, The Car Doctor - April 11, 2026 - Hour 2 - The Chevy Cruze Belt Failure Story

Ron Ananian The Car Doctor Apr 11, 2026 35 min
0:00
0:00

About this episode

Ron Ananian kicks off with a wild Chevy Cruze serpentine-belt failure story: a missing belt rib led to a tensioner issue, then spiraled into alternator, water pump, and finally a radiator replacement due to a broken GM coolant bleed plug—turning a simple service into major front-end work. He uses it to stress trusting your mechanic and expecting real costs on older cars. Calls then cover an intermittent cold no-start Subaru tied to key fob/immobilizer recognition, plus advice on disabling stop-start/AFM and whether to service an older Tahoe transmission and fuel system.

Filter:
|
Technical Too Afraid to Ask
Part

serpentine belt

"It was an oil change. It was we had to look at a couple odds and ends, and the serpentine belt was missing a rib. You know, if it's a five rib belt, it only had four. So we put a belt on it."

The serpentine belt is a single belt with grooves that spins several parts on the engine. If it’s missing a rib, it can slip and start making noise or break again.

Term

rib

"the serpentine belt was missing a rib. You know, if it's a five rib belt, it only had four. So we put a belt on it."

On a serpentine belt, the “ribs” are the raised grooves that fit into the pulleys. If one rib is missing, the belt may not grip correctly and can fail again.

Term

squeak

"Called me up about an hour later. He said, hey, you know, Ron, is it is it supposed to squeak? Is the belt breaking in? I said, no, absolutely not, you know it's it's it's we don't we don't see or break in belts anymore, So you don't bring it back."

Belt squeal is often a sign of belt slip, misalignment, glazing, or incorrect belt routing/tension. In this case, the caller asks whether squeaking is “supposed” to happen as the belt “breaks in,” but the host says that’s not normal.

Part

alternator

"So it's getting an alternator. And how does the water pump feel?"

The alternator generates electrical power for the vehicle and is typically driven by the serpentine belt. In this story, alternator wear (shaft play/clunking) is linked to belt tracking issues, so it’s treated as a likely root cause.

Brand

GM

"And this is where I blame GM. Right, this is where GM stands for giant mistakes. So GM, you know, to bleed the cooling system..."

GM is the company that makes these cars. Here the speaker is saying GM’s cooling-system design makes the bleeding step harder, especially on older cars.

Concept

cooling system bleeding

"So GM, you know, to bleed the cooling system, which you have to do after you do the water pump, or open the cooling system up."

Bleeding the cooling system removes trapped air after opening the system or replacing components like the water pump. Air pockets can reduce coolant flow and cause overheating or poor temperature regulation.

Part

cooling system bleed plug

"...puts a plastic, hard white plastic drain or i'm sorry, hard white plastic bleed plug in the top of the plastic radiator so you know, ten years old."

That bleed plug is a small valve used to let trapped air out when you refill coolant. If it’s plastic and old, it can be easy to damage during service.

Part

radiator

"let's put a radiator in it. Okay... get the plug out of the radiator and you've got to open it up."

The radiator is the main heat exchanger for the engine’s cooling system. When it’s damaged or leaking, the engine can overheat quickly, so replacement becomes necessary.

Concept

know your mechanic

"moral to the story is. You You you've really got to know your mechanic. You've really got to trust your mechanic."

The lesson is that you should trust your mechanic and build a good relationship. When repairs get complicated, that trust helps you make better decisions.

Car

Honda Crv

"I had a. Regular customer, another regular customer drop off her two thousand and eight Honda CRV this week and the daughter came in."

A Honda CR-V is a popular SUV. The speaker is using it as an example of a customer’s car that comes in for repairs or maintenance.

Concept

expect it to cost you money to work on it

"And you say to yourself whose car do you want to work on? Do you want to work on the Volkswagen or do you want to work on the Chevy Cruise? Because you look at the owners so perceptions reality ownership plays effect."

This reflects a basic ownership reality: older, higher-mileage cars typically require more maintenance and repairs. The speaker uses the car’s age and mileage to explain why customers should expect service costs.

Term

reprogrammed

"Yeah, or the car would need to be reprogrammed. And here's it only happened when it was cold."

Reprogramming is like updating the car’s computer software. It can fix glitches that cause weird starting or key-related problems.

Term

remote start

"Does it have remote start? No, it doesn't have remote start."

Remote start is a system that allows starting the engine from outside the vehicle, typically using a key fob or separate module. Because it often involves bypassing or interfacing with ignition/immobilizer logic, its presence (or absence) can be relevant to no-start and key-recognition troubleshooting.

Term

factory key fobs

"Factory key fobs. Right, you look at them, they say super run them. They look like a factory keyfob."

Factory key fobs are the original keys that “talk” to your car. If the car can’t read the key properly, it may refuse to start.

Term

starter relay

"...the starter relay, for example, in that car, the starter relay control is built into the immobilizer..."

The starter relay is like a power switch for the starter. If it doesn’t get permission (like from the anti-theft system), the car won’t crank.

Term

immobilizer

"...the starter relay, for example, in that car, the starter relay control is built into the immobilizer of the anti theft system."

The immobilizer is the car’s anti-theft “permission slip.” If it doesn’t recognize your key, the car won’t start.

Term

key next to the start

"...Read up on it, and there's a suggest and take the fob and put it right next to the start."

Putting the key right by the start button can help the car “read” the key better. If the key signal is weak or the antenna isn’t working well, this can sometimes get the car to start.

Term

push buttons start

"...it has push buttons start, you know what. I carry both keys with me..."

Push-button start means you press a button to start the car instead of turning a key. It still needs to “find” your key fob first, or the car won’t start.

Concept

keyless entry/start security risk

"...somebody walks up, pulls up on the door handle, the car unlocks and they can start it."

With keyless systems, the car can “see” the key fob even if it’s inside. If a spare fob is left in the car, someone may be able to unlock it and potentially drive it.

Term

equalizer

"And they cannot upgrade the speakers, that cannot upgrade the equalizer or anything."

An equalizer is a sound control that changes how much bass, treble, and other frequencies you hear. It can make the music sound better depending on your speakers and the room/road noise.

Term

USB

"...stereo turntable now plugs into your computer and you can play records through your computer through a USB."

USB is a cable/connection that lets devices talk to each other. In this case, it’s used so a turntable can connect to a computer to play records.

Company

Orange County Choppers

"remember eleven years ago we went to the dead Man's Curve Wild hot Rod party in mahwan, New Jersey at the Sheridan And who do we interview? Paul Tuttle from Orange County Choppers and Candy Clark from American Graffiti."

Orange County Choppers is a famous custom motorcycle shop/brand. They’re known for building standout bikes and for being on TV, so it’s a recognizable name in the car/motorcycle enthusiast world.

Concept

emotion of the automobile

"That's what I always say. It's the emotion of the automobile that I don't think we have today. We're attached to those cars from the sixties and the seventies."

They’re saying cars can feel personal, like part of your life story. The speaker believes people used to connect with cars more emotionally than they do today.

Car

2007 Tahoe

"Hey Ron, I've got a two thousand and seven Tahoe about ninety thousand miles. I'd like to know why she got the transmission flushed and the fuel system cleaned."

They’re talking about a 2007 Chevrolet Tahoe SUV. The owner wants to understand why it had transmission and fuel system services done around 90,000 miles.

Term

extended warranty

"I'd also like an extent warranty. I'm"

An extended warranty is extra coverage after the original warranty ends. It can pay for certain repairs, but you have to check what’s actually covered and what isn’t.

Term

little tiny orifs

"...it's going to scrub that off and create issues with the little tiny orifs that are inside of transmission."

Inside a transmission there are very small passages that control how fluid moves. If dirt or debris gets into those tiny spots, the transmission can start shifting poorly.

Term

Fuel system cleaning

"Fuel system cleaning, by all means. Fuel system cleaning best done where we're going to go through the rail one of two thousand and seven."

Fuel system cleaning is meant to get rid of gunk in the fuel system. That can help the engine run better by improving how fuel is delivered and burned.

Term

injectors

"...we want to get to the injectors, that is not a port fuel I'm sorry. That is not a direct injection. That is a port fuel style engine, meaning cleaning through the injectors will get the back of the intake valves, piston tops and do a very thorough job."

Injectors are the parts that spray fuel into the engine. If they get dirty, the engine may run worse, so cleaning them can help restore proper fuel delivery.

Term

intake valves

"...cleaning through the injectors will get the back of the intake valves, piston tops and do a very thorough job. Fuel system cleaning is money well worth spent..."

Intake valves control the airflow into the engine. Over time, they can collect deposits, and cleaning services may help remove some of that gunk.

Part

tone or trigger wheel

"They put the tone or trigger wheel for the crank sensor, and the crank sensor is critical. The crank sensor tells the computer how fast the engine is turning over, how fast the bicycle sprockets are going right, so it can help make a calculation for fuel delivery and spark delivery and engine operation and so forth."

A tone/trigger wheel is the toothed wheel (or reluctor) that the crank sensor reads to generate a timing signal. The ECU relies on the pattern and position of those teeth to determine crankshaft position accurately; any indexing or mechanical slack can affect signal interpretation.

Part

crank sensor

"They put the tone or trigger wheel for the crank sensor, and the crank sensor is critical. The crank sensor tells the computer how fast the engine is turning over, how fast the bicycle sprockets are going right, so it can help make a calculation for fuel delivery and spark delivery and engine operation and so forth."

The crank sensor tells the car’s computer how fast the engine is spinning and where the crankshaft is. The computer uses that to decide when to inject fuel and when to fire the spark plugs.

2 cars featured

Request an Explanation

Heard something you'd like explained? We'll add it to this episode.

Sign in to request explanations for terms you heard.

Want to learn more?

Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.

Explore Terms

Help improve this episode

See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.

Report incorrect info
Suggest better explanations
Flag missing cars

More from Ron Ananian The Car Doctor

Ron Ananian, The Car Doctor - Classic Car Doctor - October 10, 2015 - Hour 2 - You Love Your Car More Than You ThinkFrom the Car Doctor archives — originally aired October 2015. In this classic episode of Ron Ananian, The Car Doctor, Ron opens the hour with a thoughtful discussion about the emotional connection we develop with our vehicles—often without realizing just how attached we've become. Whether it's the family car that's been through years of memories or the vehicle that always seems to get us home, cars become more than machines. Ron then helps a caller diagnose cooling system problems on a 2007 Mercury Mountaineer and takes a call from a 2013 Toyota Highlander owner whose wheels were nearly left loose after a routine oil change, leading to an important conversation about trust, quality workmanship, and paying attention after service. Also featured is an interview with Derek Miller from ALLDATA, discussing vehicle repair information, diagnostic resources, and the growing complexity of modern automobiles. Ron rounds out the hour by answering listener emails about choosing the right OBD-II scan tool and diagnosing hesitation and rough idle concerns on a Toyota. A great mix of automotive advice, consumer awareness, and a reminder that our relationship with our cars is often more personal than we think.
Jun 4, 2026
Ron Ananian, The Car Doctor - Classic Car Doctor - October 10, 2015 - Hour 1 - Audi Codes, Airbags & Frozen Custard
Jun 4, 2026
Ron Ananian, The Car Doctor - May 30, 2026 - Hour 2
May 30, 2026
Ron Ananian, The Car Doctor - May 30, 2026 - Hour 1
May 30, 2026