Question about 1998 Pontiac Grand Am

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Where is the low side of the a/c (port) on a 1998

Where is the low side of the a/c (port) on a 1998 Pontiac Grand Am? I found the dryer cyl. and lines but can not locate the port.

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On the 2.4l engine the low side is located on the line coming off the compressor itself. reaching from underneath seems easiest

Posted on Jun 02, 2010

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Try following the tubes 1 from the firewall and then follow the other one.

Posted on May 29, 2010

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1 Answer

Where is the low pressure service port on a 2004 pontiac grand am, 4 cyl.?


Follow the large tube from the firewall to the compressor. the low port is ALWAYS there. Maybe on top of the accumulator (big aluminum can)

Aug 12, 2011 | 2004 Pontiac Grand Am

2 Answers

Where are the access ports to charge the air conditioning on a 1998 Pontiac Grand Am se


It is under the car,near the compressor on the large ac line,kinda hard to get to,if this was at all helpful,please rate,thank you.

Jul 02, 2010 | 1998 Pontiac Grand Am

1 Answer

Where exactly is the low port for the air conditioner on a 1998 Pontiac grand am


Normally you cannot charge the high port as the connection will not fit. Also if the A/C is working the high port gets much hotter than the low port. Also on the plastic cap it will have an L on the low pressure port and an H on the high pressure side. Do not try to recharge it unless you are 100% sure. If you are needing to recharge the system then it has a leak that needs to be repaired. It is technically illegal to add refrigerant to a system with a leak without first repairing the leak. So, my advice is to get the leak fixed first and then have the system charged by a professional with the proper equipment and training. But the choice is yours.

Apr 16, 2010 | 1998 Pontiac Grand Am

1 Answer

I'm looking for the place to recharge my air conditioner on my 1993 Pontiac Grand Prix


being a 1993, it probably uses r-12 refrigerant which is baned by the epa and you probably have to be license to purchase it. best to get it serviced by a qualified tech. it is possible that the system is 134a, in which case the port will be a quick disconnect fitting on the low pressure side. the fitting for the low pressure is between the accumulator/dryer and the condenser. also the low pressure fitting is smaller the the high side. in either case if you have no experience, it's best to consult a set of instructions
http://www.aa1car.com/air_conditioning.htm

Apr 10, 2010 | 1993 Pontiac Grand Prix

3 Answers

R134a recharger nozzle won't fit on low pressure service port.


The low pressure port on the 2003 grand am is actually behind the engine, near the firewall on the passenger side. Good luck getting your hose down there though, I ended up buying an extension hose.

Jul 24, 2009 | 2004 Pontiac Grand Am

4 Answers

Where do I recharge ac at


there are 2 ports one for low pressure and one for high pressure. the low pressure is bigger in diameter and is usually close to the dryer and or fender and firewall. the high pressure is near the condensor on the fron of the vehicle. if there are caps for the ports low will be blue and high will be red. low side pressure should be 35-50 psi and high pressure should be 135-150 psi

May 11, 2009 | 1998 Dodge Dakota

1 Answer

Low pressure port to recharge ac in 97 pontiac grand am


I just found it. you need to go under the car it's just in front of the oil pan. Now Im going to try to recharge it.Wish me luck.

Aug 15, 2008 | 1996 Pontiac Grand Am

1 Answer

AC Port


actually the low side port is on the firewall behind the engine the high is up front by the compressor

Jun 08, 2008 | 1998 Pontiac Grand Am

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