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Why is my transmission pan is making knocking noise

86 pontiac firebird 2.8 engine v6 my transmission pan is making a knocking noise when i put my car in drive i have to idle up loud for my ****** to switch gear i do not know whats oin on

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  • 645 Answers

The reason why your vehicle is making a knocking noise is probably because your valves need adjusting.
hope it can help you and if you need a diagnostic tool you can click here: chinasinoy.com

Posted on Nov 06, 2012

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6ya6ya
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Posted on Jan 02, 2017

husni_g2002
  • 112 Answers

SOURCE: 2001 Grand Caravan Loud Knocking Noise

big end or main bearing.

Posted on Jan 25, 2009

localwonder
  • 6784 Answers

SOURCE: 1996 pontiac transport Knocks in park but not in drive

This is a damaged torque converter and you may have a blown shift solenoid as well. check the fluid level. i suspect major torque converter damage.

Posted on Mar 16, 2009

redbeard00
  • 957 Answers

SOURCE: engine codes p1518, p0125, and p0420 for 2001 firebird

P0125 sets when engine coolant temp does not reach temperature for closed loop operation within a set amount of time.
May be a faulty sensor or thermostat.
P0420 Is related to a faulty rear 02sensor.
P1518 PCM & TAC module communication detected missing or invalid serial data.
If TAC related repair has been done, clear DTC & recheck system. It may be necessary to preform clear codes function twice to clear this DTC.
make sure starting system & charging system are functioning properly. Low voltage can cause this DTC to set. This should help. Let me know how its going.

Posted on Apr 27, 2010

  • 1 Answer

SOURCE: Holden Viva- Automatic transmission troubles.

Hey mate, Had exactly the same problem. Suggest you take the car to your local auto transmission repair centre (not holden) and they can check the electrical diagnostics - if it the Transmission inhibitor Switch (as it was on mine - if so should cost you no more than 1 hour labour and about $75 - $95 for the switch.

Posted on Oct 19, 2010

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1 Answer

1999 Firebird knocking then stall


Well CB....a knocking noise coming from the engine is never good news.

Typically any real ugly noise that stops an engine from running is catastrophic. With the info you provided...low oil pressure, excess oil in the pan, knocking engine sounds and a motor that will now, not turn over...sounds like a bent con rod caused by a failed main bearing.

1999 v6 pontiac exploded dia-homgkn40kjilovpbxhhmhqzq-1-0.jpg
The engine overheated so the first suspect is the cooling system, some engine designs require that the thermostat be installed with the vent or bypass hole in a certain position. Failure to position the thermostat properly can cause engine overheating.

Another cause of the dreaded knock is "Knocking and pinging" caused by a low fuel octane rating, carbon deposits on cylinder walls or incorrect spark plugs... all not good. I think you would have noticed if your motor was knocking and pinging for any extended period of time.

Excess oil in the pan gets frothed up by the crankshaft slapping it around and aerates the oil which decreases its shear strength, which is what keeps metal parts from contacting directly together.
This could ruin the main crankshaft bearings.

First thing I would do is remove all the spark plugs (to reduce engine compression) and place a socket on the crank pulley bolt and try to turn the engine over...you should be able to spin the crank....if you can't get the motor spinning..it's seized up.

Good luck !

Mar 07, 2017 | 1999 Pontiac Firebird

1 Answer

Where is the oil drain plug on a 98 firebird v6


It's located on the bottom of the oil pan.

Aug 16, 2012 | 1998 Pontiac Firebird

1 Answer

When the engine is running it has a real bad knock i've been through the rockers and the transmission and i don't know where else to look.


this is a bottom end problem - you could have a spun rod bearing cracked a piston skirt you will have to remove the engine and pull the oil pan and check the rods

May 18, 2011 | 1999 Pontiac Firebird

1 Answer

Ldgillock@yahoo.comneed to know if there is anything blocking access to transmission pan on a 1999 v6 firebird?


You will need to remove the transission cross member to get the back transmission bolt out.

Feb 17, 2011 | 1999 Pontiac Firebird

1 Answer

How do i change the automatic transmission filter in my V6 1992 pontiac firebird


to change the filter involves dropping off the sheet metal pan on the transmission, the filter is inside mounted to the part called the Valve Body.

Sep 22, 2010 | 1992 Pontiac Firebird

1 Answer

86 firebird wont shift! drove it yesterday, today it was stuck in park. i rocked the car back and forth and that freed it... but now it will only shift from overdrive to reverse. no park or lower...


You may need to drop the transmission pan and take a look at the parking paw mechanism. You might want to disconnect the shifter linkage and see if it will shift into the other gears.

Jun 05, 2010 | 1986 Pontiac Firebird

2 Answers

How to set timing on a 2000 pontiac firebird v6 3.8l


buy manual, it is probably electronic not adjustable

Sep 13, 2009 | 2000 Pontiac Firebird

1 Answer

I have i pontiac firebird 1988 and im haven a hard time installing a fual pump bcause muffler pipe is under it


You will probably have to remove the tailpipe. Also there was a service bulletin put out on your car if it is a 1988 Firebird with the 2.8 V6 Engine. Not sure what engine you have but if it is V6 let me know and I will give you the service bulletin Information.

Aug 01, 2009 | 1991 Pontiac Firebird

1 Answer

Have an 86 firebird with 2.8 v6 has loss of power


this can be caused by a plugged catalytic converter, the inside of the exhaust system can rust, break loose, and plug it up resulting in a loss of power. It can make a 'hissing ' noise when trying to accelerate, as the exhaust struggles to escape.

Apr 27, 2009 | Pontiac Firebird Cars & Trucks

2 Answers

V6 86 firebird won't start, tried starting fluid


could be a stuck valve. That would explan the knocking

Jan 30, 2009 | 1986 Pontiac Firebird

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