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Old 06-16-2010, 11:28 AM   #1
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97 astro awd pulls agressively to the left??


before i get into the problem i just want to say, school is always in session, even if you are a mechanic.

to make a long story... longer:
when you hit the brakes at any speed the van dives to the left. the harder you hit the brakes the worse it is. if you ride the brakes just enough to trip the lights, so that the weight transfer is neutral and then hit the brakes, it doesn't pull at all.

but just read on

to date i have preformed the following services/parts:

carfax:
no history found.

brakes:
new brake rotors/calipers/pads/shoes/cyliders/linesx4sections/hydro booster/master/system flush x 2 trust me no little air bubbles and perfect peddle pressure/ service to abs mod: nothing found.

suspension:
torque bars inspected and leafs found to be weak. added leafs x2 , replaced ubolts/ shocks x4w/leveling overloads/ one new shock has seepage- front driver.

steering:
wheel bearings inspected: passed. replaced pump/idler arms/pitman arm/tierods inners/outers/adjusters/drag link/ balljoints x4 /cv axles.

tires:
new bfg 235/60/15 and capped with a 4 wheel alignment/ 120 point inspection, revealing that i have alot on new parts.

unibody:
inspected at frame shop... nothing found.

to date... still has the same problem.

stumped:
2 dealerships/ 2 local shops/one performance shop

the way i see it, is, either i missed something or i need to go back around the block starting with the suspension.

thanks to anyone who has a new and fresh idea.

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Old 06-16-2010, 01:59 PM   #2
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97 astro awd pulls agressively to the left??


Here's a start
http://www.google.com/search?client=...UTF-8&oe=UTF-8
Using the advanced search option you can subtract words you don't want, corresponding to what has already been tried.

I guess I'd search for whatever is left, if there is anything left.

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Old 06-17-2010, 06:43 AM   #3
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97 astro awd pulls agressively to the left??


Did you drive it with a Tech II, monitor the wheel speeds to isolate the wheel?
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Old 06-19-2010, 02:23 AM   #4
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97 astro awd pulls agressively to the left??


Sounds like sitcky caliper pins , did you thoroughly cleen them and reapply high temp greae.
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Old 06-19-2010, 05:03 AM   #5
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97 astro awd pulls agressively to the left??


seems like the only thing left to try is the front rubber brake hoses. They break down internally sometimes and can restrict flow to a caliper. I've also experienced where it'll make a caliper piston unable to retract, too; acting as a check valve.
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