Can't pinpoint what's causing this

[Raudermaster]

I posted back, some of you probably remember, I had my A/C condensor replaced since I over filled it and killed it. But whenever I would start the car up, it would make like a grinding noise, only with the A/C on though, but I still really can't describe the sound. It would only do it on a cold start though. Well, now that sound is back again, and this time it does it without the A/C on. I noticed it did it today while I was driving too and was getting worried on what it was. What should I look into? I plan on bringing it back to the dealer and telling them to fix anything with the car before I put the Procharger on. Also too, I noticed today when I stomp on it, it feels like the car is being held back? Like it doesn't feel as if all the power is there? I have no clue as to what is causing this, and what would have caused this to become an issue. Any help is appreciated.

Thanks.

[Marauder386]

I am noticeing the same when I have the A/C on and have to hit the kickdown gear to avoid an azzhat...I have JUST NOW narrowed it down to my A/C Clutch...may need to replace it...

Just a suggestion for continuied analysis...:D



:cool:

[Raudermaster]

They also replaced my tensioner pulley when I was there too. Maybe I will have them check my A/C clutch. But why would it do it when the A/C isn't on? I thought that only spins when the A/C is engaged?

[Marauder386]

Thats a good question I dont have the answer for since the AC clutch is electrically engaged and disengaged...I should go for a run and see if it happens without AC on...My guess is that if it does, its an actual mechanical problem with the clutch and will eventually fail...back inna few after I see what happens...


:cool:

[Marauder386]

Okay...my results :

A/C on, Overdrive on : Squeal @ kickdown/WOT
A/C off, OD off : No squeal/noise

Soo...checked tensioner pulley and belt after this run...all is good with these items...

So now I am confused and prolly did the same to you...all I can think of is with the VorTech S/C, at kickdown....the belt slips...:eek:



:cool:

[omarauder]

The a/c clutch assy is basically the same as the tensioner pulley when the a/c is not engaged. It still has some kind of bearing in it, which could possibly fail. The clutch part engages this pulley to the a/c compressor.
Also, check your alternator or anything the spins with the belt.

[RF Overlord]

^^^what omarauder said^^^

The A/C compressor clutch in my previous company truck would make strange noises when disengaged, but be OK when engaged.

[Drock96Marquis]

Was your defroster on, or was the EATC completely off?


If you're having the tensioner replaced - might as well change the idler pulley as well. It's cheap.

[Marauderjack]

Okay...my results :

A/C on, Overdrive on : Squeal @ kickdown/WOT
A/C off, OD off : No squeal/noise

Soo...checked tensioner pulley and belt after this run...all is good with these items...

So now I am confused and prolly did the same to you...all I can think of is with the VorTech S/C, at kickdown....the belt slips...:eek:



:cool:

Throw on a "Gatorback" belt and FORGEDABOUDIT!!!!:bows:

[Raudermaster]

Derek I do believe my defroster was on when it made a noise as well. The tensioner pulley was already replaced when I had the new A/C condenser put in. The noise has seemed to have gone away....for now. I am still going to take it to the dealer though.




Was your defroster on, or was the EATC completely off?


If you're having the tensioner replaced - might as well change the idler pulley as well. It's cheap.