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Rattling/clicking noise when gassing/accelerating

Truckboy

By Truckboy
in Troubleshooting & Recalls

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Truckboy Enthusiast

Truckboy

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I just purchased a 2017 Silverado with 43,000 miles and I am now noticing a small rattling/clicking/knocking noise coming from underneath the divers side area when I gas it or accelerate. Is that normal? I’m just curious because I would at least think it being a 2017 these transmission/engines should be quiet... anyone else having the same issue? Didn’t want to ask the dealership to look at it incase it is normal. 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
4 minutes ago, Truckboy said:

I just purchased a 2017 Silverado with 43,000 miles and I am now noticing a small rattling/clicking/knocking noise coming from underneath the divers side area when I gas it or accelerate. Is that normal? I’m just curious because I would at least think it being a 2017 these transmission/engines should be quiet... anyone else having the same issue? Didn’t want to ask the dealership to look at it incase it is normal. 

Thinking it is your seat, lots of posts on here about the crappy seats in the K2"s.

Truckboy Enthusiast

Truckboy

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7 minutes ago, JimCost2014 said:

Thinking it is your seat, lots of posts on here about the crappy seats in the K2"s.

Haha if the seats are some how connected to the gas pedal then I’ll believe that. Lol. 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
4 minutes ago, Truckboy said:

Haha if the seats are some how connected to the gas pedal then I’ll believe that. Lol. 

Grab the bottom of your seat in the front left hand corner, push up and down, and side to side. If the click is your seat you will probably here it on the up and down push.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
21 minutes ago, Truckboy said:

Haha if the seats are some how connected to the gas pedal then I’ll believe that. Lol. 

Hey, how did your visit to the dealer go on Monday? New shocks?

Truckboy Enthusiast

Truckboy

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15 minutes ago, JimCost2014 said:

Grab the bottom of your seat in the front left hand corner, push up and down, and side to side. If the click is your seat you will probably here it on the up and down push.

From my experience from my 2002 Silverado, this is most likely a transmission issue. But let’s say you are right, accelerating can cause this loose seat to rattle? 

Truckboy Enthusiast

Truckboy

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1 minute ago, JimCost2014 said:

Hey, how did your visit to the dealer go on Monday? New shocks?

Tomorrow was their next available date. My appointment is at 7am so it will give them all day to figure out what’s wrong with it. Will let you know once I hear back from them tomorrow. 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
1 minute ago, Truckboy said:

From my experience from my 2002 Silverado, this is most likely a transmission issue. But let’s say you are right, accelerating can cause this loose seat to rattle? 

Yes sir, my 14 felt like the seat was not attached to the floor. Made more noises than the seat in my 1973 Vega.

 

Truckboy Enthusiast

Truckboy

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5 minutes ago, JimCost2014 said:

Yes sir, my 14 felt like the seat was not attached to the floor. Made more noises than the seat in my 1973 Vega.

 

Ok thanks good to know I’ll look into that seat once I get the truck back.

Jonty711 Enthusiast

Jonty711

Posted
Posted

If this is a marbles in a can sound, with low RPM and the engine under a slight load, it’s more than likely the steering shaft seal letting DI pump noise into the cabin. 

M1ck3y Senior Enthusiast

M1ck3y

Posted
Posted

low speed pre-ignition. Mine did it until I switched from 91 to 94 octane. 

 

They all do it to varying degree's of severity. Most people think their hearing the injectors or fuel pump. You can tell its lspi when the ticking is inconsistent at part throttle under slight load, hill etc. 

Truckboy Enthusiast

Truckboy

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On 7/15/2020 at 10:44 PM, JimCost2014 said:

Grab the bottom of your seat in the front left hand corner, push up and down, and side to side. If the click is your seat you will probably here it on the up and down push.

Just checked the truck today. Not the seats. Any other ideas on what it can be? 

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
59 minutes ago, Truckboy said:

Just checked the truck today. Not the seats. Any other ideas on what it can be? 

Have not had experienced this one, maybe this from above:

 

If this is a marbles in a can sound, with low RPM and the engine under a slight load, it’s more than likely the steering shaft seal letting DI pump noise into the cabin. 

Jonty711 Enthusiast

Jonty711

Posted
Posted

If the sound disappears when you turn the steering, like going around a corner, and then reappears on the straight, its likely the steering shaft boot. There is a TSB for the 2017s for this. I really don’t think it’s a predetonation noise or seat noise, if it sounds like it’s coming from under the steering wheel.

 

An alternative solution is to pump some lithium grease into the seal yourself to see if the noise settles down. If it does, that’s your issue.

Truckboy Enthusiast

Truckboy

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On 7/16/2020 at 8:14 PM, M1ck3y said:

low speed pre-ignition. Mine did it until I switched from 91 to 94 octane. 

 

They all do it to varying degree's of severity. Most people think their hearing the injectors or fuel pump. You can tell its lspi when the ticking is inconsistent at part throttle under slight load, hill etc.

Can a 2017 Silverado flex fuel take 94 octane? 

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