I have a 94 nissan altima gxe and i have a problem with the a/c. everytime a slide the temperature button to either hot or cold, it starts making cracking noice like something is stuck. I took it to get checked to an electrical repair shop and the guy told me it might be the motor or somethings fell inside it and its making the noice. It does blow out cold air but not heat. The guy told me that the cost would be $150-$500 im just wondering if the price is about right or if i can get a lil more help about it
thnx.
One of the blend door motors on the A/C Heater assembly may be stuck or defective or one of the linkage arms may have fallen off.Slide under the dash a bit and slide the temperature button.
You may have to take a panel or two off above the passenger/drivers feet area.
Can you see any movement on any linkage or locate the noise at one of the blend door motors?
You might just see a linkage arm off and you may be able to reattach it.
SOURCE: Nissan Altima no cool air blowing or hot air blowing
Hi!
It
appears we have an Air lock scenario and you will need to perform a
system Bleed.
Park
the vehicle on level ground, when cold remove coolant filler cap,
start engine and leave to idle, turn heater on full and blower to
max. When engine reaches operating temperature watch and listen near
coolant filler, keep clear as gurgling and hopefully a boil over
should occur. Top up with very warm coolant and wait as it may do it
again.
Check
for heat inside vehicle if warm replace coolant cap but keep an eye
on temperature gauge as the ~Air lock may have moved on from heater
matrix/core so proceedure needs to be carried out again from COLD.
Please
press the Blue button to appraise my FREE Efforts, Thank You!
Paul
'W' U.K
SOURCE: Replace Valve cover on 2002 Nissan Sentra
Are you sure the Valve Cover and not just the Valve cover gasket??
Any ways go to Auto Zone and pick up the Valve cover gasket, RTV Silicone selant, Gasket Scraper, and a can of Brake parts cleaner spray.
Disconnect the battery cable from the negative battery terminal, Remove the items which are in your way: Pull the spark plug wires off the spark plugs and remove them from their brackets, remove the PCV hoses, and remove the throttle cable from its brackets and position it out of the way.
Loosen the fasteners in this order, I believe there are 11 bolts holding the Valve cover down. Remove one bolt and count to the next 5th bolt and remove it and count to the next 5th bolt and remove it, do this till all the bolts have been removed on a circular pattern. Carefully remove the valve cover from the engine head.
If your just going to replace the Valve cover gasket, Remove the gasket from the valve cover. Thoroughly clean the mating surfaces of the valve cover and the engine head. Use a gasket scraper to remove all traces of old gasket, and then use the Brake parts cleaner to clean any remaining oil from the surfaces.
If you bought a new Valve cover, Apply RTV silicone sealant to the gasket and engine head around the cutout areas of the valve cover. Note you still have to clean the heads on the engine. Lay the new gasket in the groove in the valve cover. Reinstall the valve cover with its new gasket on the engine head. Tighten the bolts in the same order you removed it in. Do Not Over Tighten the Bolts that hold the Valve Cover down, you'll crush the new gasket and will get an oil leak.
Note: If the valve cover does not come off the engine head easily, use a block of wood and a hammer to bump it in an attempt to jar it loose. If absolutely necessary, you may slip a flexible putty knife between the head and the cover to break the seal.
If you purchased a valve cover gasket kit, don't forget to replace the small rectangular gasket and the spark plug seals as well while you have the valve cover off the car. You may buy some Brake cleaner to clean off all the oil which has leaked all over the engine.
DO NOT attempt to pry the cover off the head using a screwdriver or chisel. Be very careful not to introduce foreign matter into the engine. If you get anything (dirt, metal shavings, bits of old gasket) into the engine.
DO NOT over-tighten the valve cover fasteners. On the engine, the fasteners need only 17 to 34 in-lbs of torque.
Your A/C system has a leak in it. all system has a slow leak and common, You can get a re-charge kit at Auto Zone to save some money, but if your A/C needs charging again in 2 weeks or less then there is a larger leak due to a bad seal and is cheaper to have a A/C shop locate the leak and replace the seal that has gone bad.
Good luck and hope this help. keep me posted, be glad to help.
SOURCE: MOSTRAR MANUAL DEL AUTO NISSAN ALTIMA GXE AÑO
Visita autozone.com (registro gratuito), selecciona año, marca, modelo y motor para acceso gratis a la informacion deseada.
Suerte.
SOURCE: Heater fan noise-'02 Nissan Maxima
Had same problem. Replace Blower Motor. Over a 100 dollars at local parts store, but found online for half price. About 30 minutes to replace. http://www.rockauto.com/catalog/raframecatalog.php?carcode=1431961&parttype=6916
6 screws to remove glove box, One plastic nut on kick panel and 3 screws hold the blower to the air box.
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