Question about 1999 Pontiac Grand Am GT

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1999 grand am gt 3400 v6

Hi i have a1999 grand am gt 3400 v6 i was wondering if my head gaskit is blown if thats the reasoon that i dont get any heat from heater inside car i have white smoke coming for tailpipe could it be a broken heater hose driping on my mufler pipe making white smoke thanks

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If white smoke is coming out of your tail pipe is is burning antifreeze. However have it checked closely. While it could be a head gasket, the 3400 is noted for the intake gasket leaking. Have a pressure test done before you pay for something that you don't need.

Also there is a way to permanently repair the head gasket if it is a real leak as long as it still runs. Check out Barr's Leak head gasket repair and follow the directions to the letter. do not skip any thing. It works I have repair a dozen cars with this.

Hope this helps

Posted on Oct 01, 2009

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2 Answers

2000 pontiac grand am 3400 wheres the pcm located


Check the next diagram (click HERE for image zoom)...

10_11_2011_12_55_41_pm.gif

Fig. Powertrain control module (3) inside air cleaner housing in left side of engine compartment, showing the C2 connector (1), C1 connector (2), air cleaner housing (4), wiring harness (5), and forward lamp ground (6) (zoom in THIS LINK)

Hope this helps (remember to rating and leave some testimonila comment about this free answer).

Oct 11, 2011 | 2000 Pontiac Grand Am GT

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1999 Grand Am 3400 V6 misfire. replaced plugs, wires, injectors,coils Pull heads to check valves, good compression misfire at idle and goes away above 2000 rpm any help or ideas appreciated


check crankshaft and camshaft sensors. If faulty they may cause misfires, poor fuel mileage, stalls, hard starts. Make sure the ignition coil is ok, including its powers circuit. hopefully this helps!!

Apr 09, 2010 | 2000 Pontiac Grand Am GT

1 Answer

Head bolt torque specs


i'm guessing this is a V6 3400 since the headline is a 2000 Grand Am GT
44 LB FT plus 95 degrees

Apr 05, 2010 | 2000 Pontiac Grand Am GT

1 Answer

White smoke cuming out tailpipe 3400 v6


I would almost bet you have a blown head gasket or a cracked head. White smoke at the exhaust, loosing coolant, moisture on the underside of the oil fill cap, and on the dip stick are all signs of a blown gasket. The fact that there is no coolant in the oil does not mean it does not have a blown gasket. To find out for sure remove all spark plugs, disconnect the coil wire, and then run a compression test on all cylinders. If you find one or more with low compression you have a blown gasket. Do not drive this car any longer until you get this repaired. Serious engine damage will occur if you continue to drive it.

Sep 30, 2009 | 1999 Pontiac Grand Am GT

1 Answer

1999 heater fan


The Blower motor (heater fan) is under the dash on the passenger side of the car. there is a panel that has to be removed to get at the fan and can be removed with a small pry bar and patience. before the fan gets removed, check the fuses first, also check the motor by disconnecting the wires going to it and putting power directly to it (this will take some small wires to do). By doing all of this, you will determine if the blower motor is actually the problem. if the fan works when it has direct power, then the problem is someplace else.

Jan 17, 2009 | 1999 Pontiac Grand Am GT

1 Answer

Just would like to know where the heater fan motor is located .


its on the passenger side under the hood on the firwall. its the only motor over there i think 3 screws hold it in place and its not hard to change out

Jan 17, 2009 | 1999 Pontiac Grand Am GT

1 Answer

No heat


The 3400 is notorious of the head gaskets blowing. this may not be in your case. Check the level of the coolant. Their may be air in the heater core. bring it up to operating temp then check the level.

Hope it is just air in the system not the heads!

Dec 29, 2008 | 1999 Pontiac Grand Am GT

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