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Old 02-21-2007, 04:18 AM   #1
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Default chugging going into boost

Thought I would start a new thread about my problem with the chuging going into boost.

As I sit here pondering about changing my tensioner I am thinking ahead to where all my headaches started with this car.

For months I have tried to figure out why my car starts chuging when it reaches zero on the boost gauge and now that my super charger is not connected because of the belt breaking because the tensioner froze up,I wonder if the chuging could have been being caused by a bad tensioner and the belt slipping??????
Just a thought I would toss out there and now I wonder if you chnage your */c pulley to a smaller one and do not up the size of your tensioner pulley also can this cause your car to chug when entering into boost?

I have not changed the pulley on the */c but the person who had it before me could have?And if they did and did not also up the size of the tensioner and belt slipage occurs entering boost could this cause it to chug when enering boost?????

I guess I am going to have to go out to the garage and take the tape messure and meassure the pulley on the */c.And if it is the stock one then I will have to ponder some more as to why this occurs when it hits zero every time!
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Old 02-21-2007, 09:07 AM   #2
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Belt slip will not cause chugging.

You have a fueling or spark issue.
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Old 02-21-2007, 10:36 AM   #3
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I would check the intake tubing going to the throttle body from the filter box. in particular I would check the clamp at the box grab it good cause it may look ok but be loose. I had this exact same issue after I had a different shop change my oil. i assume what happens is you get turbulence by mixing cool air with hot air from under the hood. my symptoms were the same i could feel no problem under boost or vacum only when the gauge hit 0psi.
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Old 03-02-2007, 12:02 AM   #4
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Sorry for not responding back as to my question but I was in florida since I posted this question soaking up some rays!!!!!

So as to my question....wouldnt that set a ses code off if that was the prob?????



and I checked intake and all is tight and fine.

I am no expert but if when the */c is hooked up and chugging occurs when the psi reaches 0 and it starts to chug wouldnt it be related to the */c itself???

It will reach o psi now with out the belt on the */c and no chugging purs like a kitten.

What about the cat being plugged and seeing as there is no extra air being forced there is enough flow for no */c and when the */c was hooked up there was not enough flow for the extra air being forced....just a thought!
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Old 03-02-2007, 12:17 AM   #5
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IIRC you've already cleaned up the bolt and threads for the grounding strap from that battery. How about vacuum hoses, have you checked those?
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Old 03-02-2007, 02:11 AM   #6
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I have checked everything from bolts to wires to hoses and for months this has stumped me.

I got so used to it chuging going up hills ect.....that I just learned to ignore it but when my belt broke it finally started to drive normal no chugging going up hills nothing now runs fine just no */c or power.

I am getting my tensioner tomarrow and going to put it on monday when I have time and I am sure the chuging will be back.

I am just baffled as to why now there is no */c hooked up it doesnt chug at all?
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