AI is quickly becoming ingrained in the culture of information technology. Like many of you, I started out using it like an advanced Google, and to be fair it’s great for that. It keeps me from having to go to hundreds of sites, distilling down the information I see, trying a few of the commands to resolve an issue and failing until I get it right. I don’t want to discourage that use case either, while it’s not as powerful as some of the other uses it’s definitely helpful.
AI is at its core best when it’s used a collaborative mentor or as a tool and it all comes down to context engineering, an extension of prompt engineering. AI overall is smart, has access to pretty much all data but its missing a key component in a decision making and that is the context you are working in. Think of the context as the guardrails that keep the response on track. AI doesn’t innately understand the limitations that you are set up with, so the more information you give it about what you are thinking about and why you are looking at doing it a certain way will give you vastly different results.
Simple Request – No Context
I would like to fix a clicking noise in my car:
That clicking sound is the automotive equivalent of a “check engine” light for your ears—it’s annoying, but it’s actually a great diagnostic tool. To narrow down the culprit, we need to figure out when it happens.
Here are the most common scenarios and what they usually mean:
1. The “Rapid-Fire” Click (When Starting)
If you turn the key (or push the button) and hear a fast click-click-click but the engine won’t turn over:
- The Culprit: A weak or dead battery.
- The Why: There’s enough juice to engage the starter solenoid, but not enough to actually spin the motor.
- The Fix: Try a jump-start. If that works, get your battery and alternator tested.
2. The “Rhythmic” Click (While Turning)
If you hear a steady clicking that speeds up as you accelerate through a corner:
- The Culprit: A failing CV Axle (Constant Velocity Joint).
- The Why: The protective rubber boot likely tore, letting grease out and dirt in, causing the joint to wear down.
- The Fix: This usually requires replacing the entire CV axle assembly on the side making the noise.
3. The “Tapping” Click (While Idling)
If it sounds like a typewriter coming from the engine bay while the car is parked:
- The Culprit: Low oil pressure or “lifter tick.”
- The Why: The upper components of your engine (valves/lifters) aren’t getting enough lubrication.
- The Fix: Check your oil dipstick immediately. If it’s low, top it off. If it’s full, you might have a mechanical wear issue or a clog.
4. The “Slow” Click (After Turning Off)
If you hear a metallic tink… tink… after you park and walk away:
- The Culprit: Standard heat dissipation.
- The Why: Your exhaust system and heat shields expand when hot and contract as they cool down.
- The Fix: Nothing! This is perfectly normal.
To give you a better lead, could you tell me:
- Does the sound happen while the car is moving or sitting still?
- Does the clicking get faster if you speed up the engine?
Would you like me to help you find a step-by-step guide for checking your battery or oil levels?
While this is alot of good information, its not what I am wanting to fix.
Context Request:
I am mechanically inclined tinkerer that can typically fix most minor mechanical issues. I am in IT by trade but understand basic mechanics. I have a 2017 Chevrolet Malibu that has a clicking and popping sound coming from the back of my car while I am driving it. When I get out, I hear a pop in the back, this has been happening for a while and doesn’t seem to cause issues when driving. What are some of the common causes of this starting with the most common issues for this model year and make. I would like to also know how to fix it myself if possible and if it makes sense for me to do it or take it to a shop.
The clicking and popping sounds you’re describing are a “signature” issue for the 2016–2022 Chevrolet Malibu generation. Since you’re mechanically inclined and work in IT, you’ll likely find the diagnostic process straightforward, though the fix can range from a simple “hack” to a more involved component replacement.
The fact that you hear it when getting out of the car (weight shifting) points directly to a binding suspension joint or a clearance issue in the rear mounting hardware.
Common Causes (Most to Least Likely)
1. Rear Knuckle Lower Bushing (The “Malibu Clunk”)
This is the most notorious issue for your model year. The lower bushing in the rear knuckle (where the control arm meets the wheel hub assembly) tends to dry out or lose its lubrication. Instead of rotating smoothly, it “sticks and slips,” creating a sharp popping or clicking sound when the suspension moves—even slightly, like when you step out of the car.
- The Symptoms: Popping over small bumps and a noticeable “crack” or “pop” when passengers enter/exit.
2. Shock Absorber Mount Contact (GM Bulletin 18-NA-136)
GM issued a Technical Service Bulletin (TSB) for a “loose lumber” or popping noise. This happens because the upper part of the rear shock housing makes solid contact with the rubber isolation mount.
- The Symptoms: Constant rattling or clicking over minor road imperfections.
3. Rear Sway Bar End Links
Like many modern sedans, the end links have small ball joints that can develop play. Once the grease inside fails, they click every time the car leans.
- The Symptoms: Clicking specifically when turning or on uneven driveways.
How to Fix It Yourself
The “Quick Fix” for Knuckle Noise (Low Cost/Effort)
Many owners and GM techs have found success by simply re-lubricating the sealed knuckle bushing rather than replacing the whole knuckle ($250+ per side).
- Jack and Support: Lift the rear and support it on jack stands.
- Locate the Bushing: Find the bottom-most joint on the rear knuckle.
- Lubricate: Use a needle-nose grease gun attachment to slide under the rubber boot of the bushing. Pump in a high-quality synthetic grease.
- Exercise the Joint: Bounce the car or move the knuckle to distribute the grease. This often kills the noise instantly.
The TSB Washer Fix (Medium Effort)
If the noise is coming from the top of the shock:
- Remove the rear shock.
- Following TSB 18-NA-136, you can install a specific thick washer between the shock and the mount to create the necessary clearance.
Full Knuckle Replacement (High Effort)
If the bushing is physically torn or “clunking” (not just clicking), you have to replace the entire rear knuckle.
- DIY Factor: It’s a “bolt-off, bolt-on” job, but you will need a torque wrench and potentially a 21mm socket.
- Alignment Note: Replacing the knuckle requires a professional alignment afterward, as it houses the adjustment points for your rear wheels.
Should You Do It or Take It to a Shop?
- Do it yourself if: You want to try the grease-needle method first. It costs $15 for grease and takes 30 minutes. Even the shock washer fix is very DIY-friendly for a tinkerer.
- Take it to a shop if: The noise persists after greasing and you determine the knuckle needs replacement. While you can swap the knuckle, the mandatory alignment afterward means you’re going to the shop anyway—sometimes it’s easier to let them handle the heavy bolting and the alignment in one go.
Would you like me to find the specific grease needle tool or the part numbers for the TSB washers?
This is the power of context, instead of focusing on the generality of the noise that could be about anything, I have told AI what it needs to know to give me a detailed plan on how to actually resolve this issue. Context is everything to get you to the right answer instead of just an answer that is going to be wrong most of the time. You can use this path for minor or major issues, it saves a ton of time and back and forth chatting with the AI Agent.
Context is everything and also keep in mind the first prompt in the chat is the most important. It makes you think through what you are really asking for. If you don’t know it can interview you, but it’s better to understand the outcome than to figure it out with AI Agent Chat.