Tahoe 2010 LTZ OEM Struts

[Galactic23]

I bought OEM Struts on Rock Auto GM GENUINE 19420493 that match with my RPO codes 6B4 & 7B4 for my 2010 Tahoe LTZ, two months ago and they already have gone bad. Both the struts have started leaking oil and I'm not to sure what might be the cause. After the install of the struts I always got this message on my dash "Service Suspension System" when starting the truck. I've started the warranty return with RockAuto to get them replaced, but I would like some feedback if by chance both struts were defective or does the message in my dash would be an indicator that something caused them to go bad this soon?

 

[Big Mama]

sometimes the electric connection at the top of the shock is wonky but normally your code would stay on. As for the leak unfortunately some parts are bad out of the box. There are other makers like Arnott that make them and have lifetime warranty.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

It is very unusual to have 2 shocks fail prematurely at the same time. There is nothing that I can think of that would have caused the failure other than simply defective shocks. I'd recommend replacing them and still stick with GM OEM parts.

 

[petethepug]

That’s the first I’ve ever heard of new and leaking in a matter of months on both front struts.

The only thing I can think of is that someone did the ol switcharoo on their damaged struts, or returned their used, broken struts back to R/A for a refund stating they were New, unused parts.

What are you using in the truck while you’re waiting for the warranty process?

 

[Big Mama]

I hate to think that what @petethepug is saying right but that’s where we are these days. I got a kobalt tire inflator that failed so I took it back. They replaced it with a new one that was locked up in their cage. When I got home to use it it had F-33 and R-35 written on it. Now I open boxes before leaving the store or starting on a repair.

 

[Galactic23]

I’ve currently been using my Mom’s car, because the truck also has a bad radiator leak. It would be my luck that both struts were duds, thankfully the new ones coming in later today.

 

[petethepug]

I’m really stoked to hear you’re not stuck in the old GM conundrum of wanting to sell your truck because of blown z55 struts.

Dealers used to extort owners $2600 for a new compressor and rear z55 struts with a one year warranty on both.

GM also has a lifetime warranty on their OEM & ac Delco radiators. Can’t tell you how happy I am with R/A pricing, service and value with GM parts. They’re no nonsense and no funny business.

 

[Gearz]

Who installed them? Did you take a resistance check directly from the struts? When you swapped the springs and tightened them down did you hold the strut so they didn't turn the strut shaft when they got tightened because you could have damaged the internal seals if the shaft spun would cause them to leak. Do you have ( Z55) suspension because if you do then that P/N on Rock Auto doesn't say it fits your truck.

 

[Galactic23]

Who installed them? Did you take a resistance check directly from the struts? When you swapped the springs and tightened them down did you hold the strut so they didn't turn the strut shaft when they got tightened because you could have damaged the internal seals if the shaft spun would cause them to leak. Do you have ( Z55) suspension because if you do then that P/N on Rock Auto doesn't say it fits your truck.

I had my buddy that’s a mechanic install them. And I do have the Z55 suspension, I picked out that strut because it matched with my RPO codes. What was the correct part?

 

[Gearz]

Your RPO says Z55? I can see it on the lower left hand side

 

[Galactic23]

Your RPO says Z55? I can see it on the lower left hand side

I got the rear shocks installed at the same time which says “Z55” and they’ve been perfect. As for the front struts, RA doesn’t say anything about Z55 on the OEM parts descriptions, it shows those other RPO codes, so that’s why I matched it with 6B4 & 7B4 code.

 

[Gearz]

Well it wouldn’t be the first time a part store is wrong..

I would call a GM dealer and ask for the correct p/n for your vehicle if you haven’t done that yet..

 

[Galactic23]

Well it wouldn’t be the first time a part store is wrong..

I would call a GM dealer and ask for the correct p/n for your vehicle if you haven’t done that yet..

Was freaking out for bit in case I had bought the wrong part. My local dealer closes in 15 mins. Gave them a call, gave them the VIN and they gave me the part number and it matches the one I had bought (19420493).

 

[Rick10Tahoe]

@Galactic23, what did you end up doing? I need front struts for my 2010 Tahoe LTZ with z55.

 

[Galactic23]

@Galactic23, what did you end up doing? I need from struts for my 2010 Tahoe LTZ with z55.

I did the warranty with RockAuto (GM Struts 19420493) dropped off my old struts yesterday at FedEx. You should call the dealer give them your vin to make sure which struts your truck uses. I got my new struts installed 2 days ago, mechanic struggled a bit with driver side strut because they were “frozen”; which it’s still crazy I really got 2 faulty struts at first. I no longer get the “Service Suspension System” on the dash at start up, and ride feels good.

 

[Rick10Tahoe]

I did the warranty with RockAuto (GM Struts 19420493) dropped off my old struts yesterday at FedEx. You should call the dealer give them your vin to make sure which struts your truck uses. I got my new struts installed 2 days ago, mechanic struggled a bit with driver side strut because they were “frozen”; which it’s still crazy I really got 2 faulty struts at first. I no longer get the “Service Suspension System” on the dash at start up, and ride feels good.

What all did you buy new and what did you reuse?

 

[Galactic23]

What all did you buy new and what did you reuse?

So I bought both of my rear shocks (GM 5801093), both the front struts (GM 19420493) and reused everything from the old struts except for the suspension strut bumper and bought two of them on amazon (GM 84157475).

 

[Rick10Tahoe]

So I bought both of my rear shocks (GM 5801093), both the front struts (GM 19420493) and reused everything from the old struts except for the suspension strut bumper and bought two of them on amazon (GM 84157475).

I will be doing the same. Were there any other parts you wished you had swapped out?

 

[Big Mama]

When I did this swap I went round and round about getting the strut spring combo since I was doing the work. I ended up getting just struts and borrowing a compressor from Advance.

 

[Rick10Tahoe]

When I did this swap I went round and round about getting the strut spring combo since I was doing the work. I ended up getting just struts and borrowing a compressor from Advance.

In addition to the strut, what other parts for the strut did you change?