Grinding noise from throttle body

[warndogg]

So this is a long post, but it started with the reduced engine power/ stability system disabled warning on the dash- (code was for throttle position sensor).

So I replaced the throttle body and it seemed to go away for a few months. Then it came back, so the gas pedal assembly was replaced. I disconnected the battery. Let it sit for a good hour, reconnected batt. Now its worse. When key is turned to on position there is a grinding sound coming from the new throttle body. This can't be normal. I thought it was maybe part of the re-learn? But then I get the reduced engine power immediately on start up.
Also I have checked ground at firewall, frame, and engine block. And all other wires look good. Any one else have this noise from TB after replacing?
2006 yukon denali 6.0

 

[strutaeng]

Sounds like you got a bad replacement?

 

[B-train]

Did you go OEM or aftermarket? The noise is not normal either. The only noise you will hear is a gear noise when actuated by hand, but it's a quiet, linear, noise

 

[warndogg]

Sounds like you got a bad replacement?

Yeah have a new one ordered should know tomorrow.

 

[OR VietVet]

But please answer the question asked by @B-train. OE brand or aftermarket and what brand aftermarket if you did?

 

[warndogg]

But please answer the question asked by @B-train. OE brand or aftermarket and what brand aftermarket if you did?

Oh sorry it was a new Hitatchi ETB0019 from Rock Auto, have another one on order.

 

[warndogg]

Installed new TB today no codes on test drive!, time will tell. Rockauto sent a new Hitatchi out only was out 8 bucks return shipping.

 

[OR VietVet]

Installed new TB today no codes on test drive!, time will tell. Rockauto sent a new Hitatchi out only was out 8 bucks return shipping.

So, warranty charge cost you $8. Have not had to warranty anything with RA.

 

[Tahoe14]

That doesn’t seem right if it was a warranty issue.

 

[Doubeleive]

So, warranty charge cost you $8. Have not had to warranty anything withRA.

warranty covers the part, not shipping cost I am fortunate enough that the west coast warehouse is only about an hour from me so usually shipping is pretty cheap
and RA just deducts any core or return shipping cost out of what you paid for the part or core and refunds you the remainder.
it's just like "most" things that have a warranty. if you buy a water pump the part has warranty, that warranty does not include labor cost to R&R
per there website:

• Warranties offer only replacement of the defective part with another part: no cash refunds and no reimbursement of labor costs, shipping costs or other expenses.

if you buy certain things from certain places they will include parts & labor, like powertrain products warranty for a transmission will include parts & labor (albeit) there warranty only covers up to a set $$ labor rate which is usually pretty low.
other places like advanced auto will cover parts & labor if you have the part installed by one of there designated shops.

 

[OR VietVet]

I had to open up my big mouth about no warranties with RA. Belt weatherstrip seal that I ordered for a 2011 Tundra would not grip the little clips on the backside/inside the door panel and would not seat down as should. I explained the reason in my garage thread. They charged a shipping return fee of about $7.50 that will be deducted from the part price.

 

[rockola1971]

Lets dig in to the "reduced engine power mode" and the why it popped as a code. The requirements to set that code are that the input signal which comes from the throttle pedal assembly does NOT match the Throttle body position that was commanded within a certain percentage of error. This prevents engine runaway. Wiring within those systems can cause this code and so can the mechanical drive motor system within the throttle body, its feedback signal pot and also the feedback pot in the throttle assembly.

 

[campfirestu]

So this is a long post, but it started with the reduced engine power/ stability system disabled warning on the dash- (code was for throttle position sensor).

So I replaced the throttle body and it seemed to go away for a few months. Then it came back, so the gas pedal assembly was replaced. I disconnected the battery. Let it sit for a good hour, reconnected batt. Now its worse. When key is turned to on position there is a grinding sound coming from the new throttle body. This can't be normal. I thought it was maybe part of the re-learn? But then I get the reduced engine power immediately on start up.
Also I have checked ground at firewall, frame, and engine block. And all other wires look good. Any one else have this noise from TB after replacing?
2006 yukon denali 6.0

Did you figure anything out?

 

[warndogg]

Did you figure anything out?

Yes I put the new TB in and did a re- learn on the idle, haven't had any issues since.