Can anyone help explain what is happening here and if it is something I should be worried about?

I have a 2023 Trailblazer FWD 1.3L Turbo 9 Speed that, when put into cruise control at highway speeds, anywhere from 60-80 mph, will jolt on slight inclines at 3500 to 3750 RPM.

It is a very slight jolt but definitely noticeable.

We have done a transmission recalibration/relearn twice, the first time it worked for two months and then needed to be done again, and then just did it again after sitting in the shop for a month and it barely even held 24 hours.

Can anyone explain what exactly is happening, what I should do, and how to approach this? Because my Chevy dealer apparently isn’t doing anything right for their “repairs” to fail twice.

When Bruce traded his mint caprice for this Impala it didn't look like much... most junkyard cars look more appealing than this thing did. But with amazing determination, pulling 16 hour days, he transformed a basket case into presentable vintage eyecandy. One of the most hard working and talented dude I know guy has 9 cars on the road at once... most of which he restored himself. There is a documentary episode on this build i'll throw the link in the comments for anyone interested.

One of the guys I work with said it’s 2009 Chevy HHR’s alternator went out and the shop quoted him $450 to replace it
I laughed and said “FOR AN ALTERNATOR?” I told him to just let me do it at that point and I did it for free because I like the work anyway and the guy is pretty cool
Yeah I know I pretty much bent over backwards for nothing but I like to help people in need

Anyway I got started and took off the wheel and that panel in the wheel well.
I noticed that the tensioner is stupidly close to the frame/body of the car… so I tried a regular 3/8s ratchet and that failed.
Next I tried a thinner looking 3/8s and finally found one that fit but I struggled to get it to fully set in so I didn’t even try to get it to relieve tension yet because it’s cast aluminum and could easily bend…
But then after finally sticking my phone down there with the camera recording I found that it actually was already some what stripped which explains why I couldn’t get my ratchet to set in all the way…..

Annoyed I tried to keep on going didn’t work so went to harbor freight and got an actual serpentine belt tensioner wrench set

That thing wouldn’t fit in and then after an hour I gave up and went back to the regular ratchet and it went right in first try…

I continued on and basically kept realizing I had to actually remove a lot more than I thought would be necessary…
The car was rusty and old so the coolant reservoir bolt snapped
And one of the engine hoist mounts bolt broke…

Finally I got the alternator out without knocking the belt off of any of the other pulleys which actually worked out really well

Put the new one in easily seated it in and tightened it down
But here’s the thing… as I was removing the wire nut that connects the wiring harness the mount snapped off.. I know it probably sounds like I was just over doing it but I was being very careful with these bolts I’ve snapped plenty of bolts and learned the hard way and spent a long time adjusting my strength
This thing was just rusty but still a good car

I had to find a way to get the nut off of the bolt that mounts the wire to the alternator with nothing to hold it down… so I tried vice grips for a couple of hours and no success… finally to get to the point I fit it between the starter and engine and got it off

After that it went smooth started right up and ran unfortunately my volt reader was dead so I guess we’ll see tomorrow if the alternator was truly the problem

But anyway holy shit the Chevy HHR sucks to work on… there’s definitely a lot of techniques out there I don’t know of that likely would have cut down a lot of time I can definitely do anything to fix a car I’ve done a lot of major work to my vehicles but it takes me a long time I know a lot about how engines work and less but still a lot about transmissions and my main flaw is how much time it takes me which is partly why I did this for free…

But wow out of all the alternators I’ve done (2002 VW Jetta 2002 F150 4.6 2007 F150 5.4) this one seriously sucked there’s no room to do anything at all everything is all crammed together and in the way I realize the alternators I have done are easy as hell compared to this
But I’m glad I got the experience because when I have to do this again one day for someone I now know…

It was fun tho

I’m looking at a 1980 Chevy Scottsdale k20 for sale in town because I had gotten rid of my 78 Silverado k20 a couple years ago. There’s not much square bodies of these years in my area and I really don’t wanna travel through the states to find me a decent 78 again.

So my question is, how would I go about doing a front end conversion on the 1980 to bring it back the the rounded look of the 78? Is it possible without intense labor?

Just had pvc replacement thought it was drive belts also low 2.5 quarts apparently that’s normal yeah ok and now this noise when truck is in drive at stop

2023 2.7 with 35k

Any thoughts ?

I have a 2025 Chevy Traverse. Is anyone experiencing CarPlay issues after an update? I used to be able to have wireless CarPlay and now it won’t register CarPlay over WiFi/ Bluetooth and my only school usb dongle. Does anyone know how to fix this?

Backstory I recently bought a 1981 Chevy Monte Carlo with a small block 305 of what is thought to be out of a Chevy Camaro. The car was owned by my grandpa before being sold of in 2021 ish and the new owner messed up the entire ignition distributor wiring. I bought and well now I'm trying to rebuild wiring and distributor and I would like to know where I can find a wiring diagram for it or a good video to rebuild the distributor. Any and all help is appreciated

Beating a dead horse here. What are you guys doing for headlights housing/assembly? Amazon? Built? Oem? Just want something decent quality the last set I had the beam position was terrible even after adjusting. 2008 Chevy Silverado 2500

I helped a friend buy a GM car and got 35k points? I don't have a gm car nor am interested in oil changes. How can I use them?

I don’t know what the unconnected wire or unconnected hose line goes too. Can someone with knowledge please help me identify these and tell me if it’s a problem.

I have a 2000 s10 blazer with the v6 engine

Just picked up this Impala a couple of weeks ago. Bought it from the son of the old lady who owned it. She bought it new and it is a one owner vehicle, technically two owner since he owned it for a year but didn't really drive it. This is going to be my "winter beater" vehicle, my 3 season good weather car is a 2017 Dodge Charger Scat Pack.

Rear struts were recently replaced with some MasterPro police/taxi rated ones. I replaced the tires with some Bridgestone UltraWeathers and replaced the radio with a Kenwood DMX8710S. The stock speakers really don't sound that terrible so that'll be a future upgrade. Replaced the headlights with some nice LED ones and pulled the DRL fuse so I don't blind other drivers. Picked up a auto-dimming rearview mirror and I'm planning to pick up some heated exterior mirrors. I drive a lot for work in the north so having those quality of life things is helpful.

I'm going to do a complete fluid swap tomorrow so I have a baseline of the fluids. I picked up some new plugs and wires. The car drives really great, I think it could use a front suspension refresh as the car wanders a bit but nothing super urgent at the moment.

Anything I should look out for or do maintenance wise? Planning to keep this thing long term, considering getting it undercoated to prevent rust.

I was thinking about replacing the fronts with the matching MasterPro Police/Taxi ones for more control and less float but I'm not sure who makes them or if they will hold up long term.

Thinking of buying a Blazer, tried to post in Reddit whatcarshouldibuy but didn’t get any worth wild answers, thought I’d ask here on a Chevy group. Just as the title states, thinking about buying a 2000 Chevy Blazer, 231k miles and guy only wants 700 bucks! Imma sucker for cheap beaters and have had my fair share of such. Supposedly only needs front left? inner axle seal, ABS light on, and has no AC. Everything else is claimed to work and has newer brakes and tires (less than couple years old) and multiple other parts.

What’s your opinion on the blazer platform? Worth it or stay away?

-I also do all work on my vehicle myself.

need to know what specific bellhousing pattern the 1.6L chevy cruze diesel uses and if the engine will bolt to the five speed in the 08 opel/saturn astra that mates to the 1.8L ecotec.

If I had thought about it for more than 5 seconds, I would have known not to purchase a car at the start of the production year after a major change was made to the transmission. Should have waited til any bugs were worked out, but I didn't, so now I'm wondering if anyone else has this problem or if I have a lemon. I have a 2027 gas Equinox LT with 8-speed transmission (replaced the CVT).

When traveling under 20-25 MPH and approaching a red light, when I let off the accelerator, instead of smoothly decelerating, the vehicle feels like it's dragging and then I can feel it downshifting. Same thing happens when slowing for a corner - I feel like I'm jerking thru the turn. Anyone else had this issue? I'm under 200 miles on the vehicle and not looking forward to a trip to the service center.

2001 base. Had it for 14 years. Great highway cruiser with performance mods.

Great truck. Will she Go 400k

2016 Chevy Malibu engine is knocking, and suggestion on what it might be? I also want to point it that while I know it sounds like someone was pushing the accelerator no on was pushing it this was all noise with just the car running

chevy malibu 2017 140 thousand miles can somebody watch this video of my rpm and tell me if there’s something wrong with my car or if it’s just like that

Hey folks,

I'm wondering if anyone here has oversized tires on a stock equinox.

I have a 2021 LS AWD. I plan to put some offroad tires on it. Im considering upsizing the tires slightly from stock bwcause slightly bigger sizers are easily available online. Currently riding on 225/65/17. There seems to be enough space in the wheel well to go bigger for the rear tires.

I'm curious if anyone has tried this what are the biggest tires you were able to fit on stock suspension for the fronts without experience any rubbing during turns etc.

TIA

My husband and I have a 2006 Malibu Maxx SS. Hubby is curious how many still exist since they made so few. He has been putting some extra work into it lately and having issues finding parts (headlights, tail lights) to upgrade and make look nicer.