2nd Generation Specific 1986-1992 Discussion

Need some help.

Old 12-12-2006, 09:36 AM
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Ok, So ive been doing some work on my 87 TII the last couple days and i a test for my air control valve where you unhook the hose At the air pump and make sure there is no vacuum @ Idle, Then you increase engine speed to over 3000 rpm and then snap the throttle shut and make sure there is vacuum. Well, there is no vacuum on mine, But i dont want to go and replace my air control valve if that really isn't the problem. And the reason i am checking all this stuff is because i am storing the car for winter and want to solve the problem of the car bucking back and forth under deceleration in 3rd gear Around 2-2500 rpms. I know it's isn't my throttle sensor cause that checks ok. What else should i check?



Oh, and also, I was going to check my thermostat because i have no heat in the car, but i can't find the damn coolant drain plug... I know it's under the left side of the radiator but hell... i can't find it.



Thanks,



Anthony.
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Old 12-12-2006, 10:30 AM
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If you have a jack, jack the front up some and run yor hand across the bottom of the radiator, and check good it could be covered in dirt/mud/oil anything just check good. I bet its still there
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Old 12-12-2006, 12:26 PM
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the coolent drain is in the center of th rad. there is a hole in the belly pan to access the screw. and i would go ahead and replace the acv
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Old 12-12-2006, 01:02 PM
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Thanks guys. Do you happen to know around about how much an acv costs? And do you think that is causing my problem?



Anthony
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Old 12-12-2006, 02:36 PM
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Originally Posted by Al01412' post='848855' date='Dec 12 2006, 11:02 AM

Thanks guys. Do you happen to know around about how much an acv costs? And do you think that is causing my problem?



Anthony




New, they cost more than you want to pay

http://mazdatrix.com/getprice.asp?partnum=13-9900-N332



you can look for them on ebay for cheap used though but you may have to go threw a couple before you find a really good one p.s. most people just remove this thing
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Old 12-13-2006, 10:26 AM
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Holly ****!!! Yea, that is a little more than i want to pay... I don't know what to do now...I don't really want to do the ebay thing and have to keep replacing it, that'd be a pain in the ***. looks like my only option is to fork out the $430.00. If i do that it better solve the problem or i'll go crazy!
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Old 12-13-2006, 12:49 PM
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So, ive been working on taking the acv out So i can take it to school tonight (i go to school for automotive) And See if my teacher has any ideas of further testing on it and i can't even get the damn thing out! lol. im going throught all this trouble and i don't even know if the acv is what's causing my problem... I lost so i have the car all ripped apart and don't even know what to do. And to top it all off i live in ohio so this little good weather thing we have going on right now isn't going to last long.... ****





Anthony.
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Old 12-13-2006, 02:03 PM
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Do you guys know where the water thermo sensor is on a 87 TII? And could that cause bogging probs during deceleration?
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Old 12-13-2006, 04:36 PM
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N332-13-990 VALVE, AIR 399.06, INTERNET PRICE + FREIGHT.. Be sure that's the problem, be an expensive paper weight if it didn't solve it.

We usually charge 10% frt but let us ship it ground and we can save ya $20 on freight..

I have Non turbo so am not well qualified to help diag the rpoblem... Best of luck.



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Old 12-14-2006, 10:52 AM
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Thanks Neil, Im going to do some more work today on her and we'll see how it goes.
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