Question about 1989 Pontiac Grand Am

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Smoke when braking!

I've got a Pontiac GrandAm 1989 auto with Vtec engine. The problem starts when I would come to a full stop there would be lots of smoke coming out of the grill and under the hood as if I was overheating!

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  • thewolf3219 Sep 05, 2009

    A: Cylinder Head Gasket is broken due to going 150KM had it replaced twice!!



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Is this smoke or steam if it disapates quickly it is steam (which means you either have a water leak or are overheating) if it is smoke it will hang in the air much longer this could be something as simple as a valve cover leaking, a brake line leaking and hitting your exhaust manifold

Posted on Sep 05, 2009


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1996 Pontiac Grand Am. Front brake issue

If you had a mechanic replace all those parts correctly (no air bubbles), the problem may be a blockage in the break line. What you can try is buy about a half gallon or so of brake fluid and a large disposable bucket or bowl and get a friend to help you.

Remove the brake line from the caliper that is giving you the problem (smoke) and place the line in the bucket. Open the brake fluid resivoir and make sure it is full. Have your friend pump the pedal (with the engine and key OFF) all the way to the floor a few times, refilling the brake fluid as needed. After you have done this until you think all the fluid has been replaced, replace the line to the caliper. You should find a small "nipple" that looks like it should be connected to something, but it may not be. This is the bleeder valve.

With the engine still off, have your friend pump up the brakes until they are stiff and hold pressure on the brake pedal while you loosen this valve to allow any air to escape, then tighten the valve back before repeating the process. Making sure that all the air is out of the lines and caliper may take a lot more brake fluid and you can still use the bucket to prevent making a mess.

Don't forget to dispose of the used brake fluid properly. Most auto mechanics will take in the used fluid (motor oil too) and recycle it for you.

If this doesn't solve your problem, have a mechanic check the master brake cylinder and lines to the brake caliper and replace any lines that may be blocked. You can also have them just replace the lines to that caliper if you don't want to make a mess and get a little dirty! :)

I hope I could help narrow down your problem and help you get it fixed. Good luck and don't forget to rate! Thank you.

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I took it back to the dealership that I bought it from and they told me that the radiator had a crack in it and it over heated causing the fluids to leak all over the engine and that is what blew the head gasket.... so i will be getting the radiator and the engine replaced ..... but thank you so much for your help

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the catilic converter may be clogged. this could b.e the reason for the black smoke .it could also cause poor fuel mileage .you might try removing it and see if the black smoke stops .if it does change it and your fuel mileage should improve

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