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How to replace expansion valve on a 2006 altima

Sucksion line leaking , orderd one from advance auto, installed, over tightend bolt in expansion valve. now i need to replace it.

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Posted on Jan 02, 2017


SOURCE: replace expansion valve

Hi Tresap,
The only expansion valve that I can think of that you may like to replace is on the air conditioning unit....This valve is found usualy mounted onto the AC unit....You'll have to remove the dash board and centre consul....This is qute a job....You should then see the expantion valve on the cabin side of the AC housing....where the pipes go thru into the engine compartment....NOW HOLD EVERYTHING.....before you can remove the valve you need to depressurize the AC unit....That should be done by an expert....The gas is dangerous and you must wear safety googles at ALL times....Once you have removed the valve, you must seal the system so that as little moisture as possible enters the system....If it is left open, you'll have to replace the dryer unit too....when you've finished your replacement, assembly is the opposite as disassembly.....You'll then need to have the system recharged....Don't try to engage it until that has been done....It wont work even if you tried ,as there are pressur switches which will inhibit the opperation....If you have had practice, it will take about three quarters of a day......if not, three or four days

Hope that this helps you

Best regards Johngee10

Posted on Sep 01, 2008

michigan man
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SOURCE: Replace the A/C exansion valve

i am not really sure on this but try these websites fix & troubleshoot heating & A/C its and the other one is car A/c repair if you have a autozone near you there you can rent the special tools you will need take them back and get your money back try

Posted on May 25, 2009

  • 2004 Answers

SOURCE: how can I replace the air conditioning lines on 2006 Chrysler van

It;s a very difficult task. Pay the money and ease yourself off stress.

Posted on Jul 03, 2009

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SOURCE: oil leak at the bottom of the oil pan.

Dear Sir,
Here is the oil leaking Problem Identifying Technique

Engine oil leaks from the valve cover gasket are common.

  • The intake manifold plenum gasket may leak and cause increased oil consumption/burning and a spark knock during acceleration; the gasket should be replaced.
  • External oil leaks from valve cover gaskets, intake gaskets (front or rear), and the rear crankshaft (rear main) seal area are common. The rear main seal is an unlikely source. Normally, the bearing cap mating surfaces (as well as the sealing surface between the oil pan and bearing cap) are the source for the leaks.
  • Engine oil leaks at the distributor can be misdiagnosed as leaks from the intake manifold seal, oil pan gasket, or rear crankshaft (rear main) seal. A revised distributor is available if oil is found inside the distributor.
  • If the oil filter casing shows signs of distortion from excessive oil pressure, the oil pump should be replaced.
  • Often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.
  • Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.

  • I think it helps to analyse u r Problem

    Posted on Jul 10, 2009

    • 115 Answers

    SOURCE: Main bolt for alternator has been removed.

    a 1/4"10 mm swivel will break it loose then it sould only be finger tight i have never crossed one any tighter keep the top on tight until the bottom comes loose

    Posted on Sep 04, 2009

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    Where is the expansion valve on a 05 rx8

    The expansion valve is bolted directly to the evaporator core. You will need to recover the Freon before attempting to remove this. Once the Freon has been recovered, and the expansion valve removed, be sure to cap off any and all a/c lines to prevent excess air/moisture from entering the system. Once the new valve is installed, you will need to pull a 30 hg vacuum on the system for at least 30 minutes then recharge with the proper amount of Freon.

    May 18, 2014 | 2005 Mazda RX-8

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    Where is the expansion valve located on the 2004 KIA Sedona

    Kia Sedona expansion FRONT valve located under dash, behind glove box, fan and coil. Evacuate freon first. Disconnect Freon lines from firewall., Lay right front seat back to flat horizontal position and lay on top or totally remove the seat for easier working access. Remove under dash cover, fan, glove box, coil housing, remove coil mounting bolts, remove old expansion valve. (Inspect old valve, if debris inside, blow out coil before installing new valve. If visible debris best to consider replacing REAR expansion valve and DRIER/FILTER in front of radiator too and blow out all lines and coils while servicing.) Use compressor oil to lubricate "O" rings on new FRONT or REAR expansion valve, install valve bolts, reinstall coil bolts to FRONT firewall or REAR frame, reconnect freon lines to firewall in engine compartment. Evacuate AC system, install freon (35 1/2 ounces, nominal 3 pounds), check system for leaks, check for proper operation, enjoy.

    Sep 12, 2012 | 2004 Kia Sedona

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    How do i replace my ac expansion valve?

    {: ) You didn't mention your vehicle model. But anyway, the a/c expansion valve can be usually found at the engine compartment firewall, just a division away where it connects with the evaporator inside the dashboard. Just follow the trail of the two a/c pipes from the a/c compressor going towards the engine firewall, and there youl'll find a small rectangular block that serves as the junction point. That is the expansion valve.
    The two pipes are mounted to the expansion by one or two bolts, depending on the model. Before you begin removing a/c components, make sure the surfaces especially the area of concern are cleaned, this is to prevent dirt or dust entering the a/c system. If possible, cover the pipes and openings. After removing the bolts, separate by pulling the two pipes aside. The expansion valve is mounted to the evaporator bracket, it's either a torx or an allen type bolts. You need to remove these bolts to separate the expansion valve from the evaporator bracket. Cover all openings of a/c lines to prevent contamination.
    With the expansion valve removed, have time also to check the quality and color of the refrigerant oil. Check for possible contamination, flush the system if needed and reevaluate the condition of the compressor and condenser.
    If everything seem to be fine, proceed with the new replacement of the expansion valve. It is also advisable not to reuse the old o-rings. Use new o-rings whenever possible.
    Installation is just the reverse of the removal, so goodliuck.

    Jul 23, 2011 | Chevrolet Corsica Cars & Trucks

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    The expansion valve for the rear ac needs to be replaced. Is this an easy thing to fix? would an evac have to be done after the valve is replaced?

    Yes. System must be evacuated in order to open line to change expansion valve. After replacing valve the system must be vac tested for leaks and recharged.

    Jul 13, 2011 | 1999 Chevrolet Express

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    Does the valve cover on a 2002 Altima 2.5L have to be replace if the spark plug seals are bad

    No you do not have to replace the valve cover, you however to need to replace the spark plug ring seals. You can find it on ebay, or go to your local auto store, like autozone, advance auto, and they should be able to order it for you too. You may need to take out your valve cover in order to get to the spark plug rubber seals which is on the inner side of your valve cover.

    Feb 06, 2011 | 2002 Nissan Altima

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    Where is the expansion valve located on a 98 Grand Am 3.1?

    Grand Am has an expansion valve. Link below has part number and picture of what you are looking for.

    Unfortunately, I do not know precisely. But for the most part auto a/c's are all the same. Below I will describe how to find it. I have also included a aguide to determine system operability that may or may not be helpful. Just trace the system with flow path described below the valve has to be between condensor and evaporator.

    Reminder the flow for the a/c system is :
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    2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
    3. From expansion device the low pressure gas enters the firewall to the evaporator.
    4. From evaporator the low pressure liquid/gas mixture goes through the dryer2_bing.gif back to the compressor suction.

    Below is a guide to troubleshoot and check system function. This can be done by most folks.

    Look at the front of the ac compressor and have someone turn on the ac from inside the car. The front of the pulley(clutch) will spin when turned on.

    If it does not spin, the low pressure switch (LPS) is not satisfied. Meaning there is not enough freon in the system to operate the system. Means low freon capicity because of a leak.

    The LPS can be jumpered to cause the compressor to run (clutch to engaged) which will draw the freon in the system.

    The LPS is usually a two wire sensor on the suction of the compressor. (between evaporator and compressor) Unplug the sensor and install a jumper, this will engage the clutch. Connect a new can of freon
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    The capacity of the ac system will be on a label under the hood, do not overfill. Probably about 2 lbs. Local parts stores (Auto Zone and Advance) will have freon with stop leak. This may help the leak. They also make a freon with a UV dye. I always add a single can with dye so that if stop leak does not work I can find the leak in the future.

    The system should be filled until suction pressure is about 30 to 38 psi..

    May 31, 2010 | 1998 Pontiac Grand Am

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    I would try snugging down all the valve cover bolts before replacing anything. A valve cover gasket kit should have the grommets and gaskets necessary to repair this if you find no loose bolts.

    Sep 27, 2009 | 2002 Nissan Altima

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    97 suburban rear a/c doesnt get cold but front works great

    the expansion valve is in the rear ac housing and it is bolted directly to the rear evaporator. it is an actual expansion valve and not an orifice tube. the part is about $45. the interior on the passenger side has to come out along with the entire rear ac sytem.

    Jul 18, 2009 | 2004 Chevrolet Suburban

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