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Could be low on antifreeze. The cooling system will not allow antifreeze to flow into the heater coil if the level is too low. If you check and need to add fluid then look closely for leaks from the hoses, radiator or anywhere else you think it could be escaping from.
Technically you are right, the choke is on. When the engine temp is cold, or the computer thinks its cold, the computer bumps the base idle up until the engine warms up. You could have a problem with the temp sensors, or the cooling system could be low on coolant.
HELLO THE 1ST THING THAT MUST BE DONE HERE IS TO HAVE THE AC SYSTEM HOOKED UP TO A SPECIAL AC PRESSURE GAUGE SET TO SEE IF THE SYSTEM IS LOW ON CHARGE DUE TO A REFRIDGERANT LEAK. THAT IS THE MOST COMMON CAUSE OF NO COOLING IN ANY CAR OR TRUCK NO MATTER THE MAKE OR MODEL
We are in cold environment too so I have some simple tips.
If car has block heater plug in for a couple hours.
If cranking is too slow due to cold - battery must be getting weak. Need a boost / jump start from someone to get it started - or - alternately, hook up a battery charger for several hours. Then let it run awhile to warm up and to charge. Then all charging system should be checked at garage. Battery, alternator for charging ...etc etc.
1989? Fairly old. Carburator or fuel injected? If carburator - take off air cleaner cover and prop open choke butterfly valve at top 1/4" with ex. small screwdriver inserted - then try and start (too much fuel in mix/choke staying shut too much when cold, engine "flooded").
If water or condensation gets in fuel = trouble. Add some premium gas line antifreeze ( pure isopropyl alcohol type is best ). In cold season, try and keep gas tank near full (helps avoids condensation moisture in air part of tank), and use better gasoline, try premium for awhile - costs more but worth it.
A general tune up/check up at garage for cold season may be necessary. Check battery & connections. Clean battery connections, they can get corroded. Check charging system incl alternator. New spark plugs and ignition wires may be a good idea if very old.
In winter, if it gets very cold where you are (below -10 C or below -15 F), consider using a synthetic engine oil - helps make cold cranking easier and lubrication better during cold startup.
Car may just be getting very old and tired. A 1989, if not kept up, may always give some trouble starting when it gets very cold. As everything ages and wears, performance drops - naturally - and cold starting may be difficult on an older vehicle - and you may only be able to improve that only so much ...
best of luck. I think consult with a mechanic or get a nearby friend who is knowlegeable in cars to help you out. May not be such an easy problem to solve. You know ...cars ... that is just the way they are.
Hi, the reason for this is the location of the evaporator core, its on the passenger side, a low charge will cause the side nearest to core it to cool more. Your cycling of compressor concures with this scenario. Recharge system to specifications.
The low side pressure seems ok the high side would help,Is your compressor cycling and is the air coming out even slightly cool?slight over charge cold effect cooling ability.I wish I could be more help. I will have to think about this one.maybe you could make sure your temp.door is actually in the commanded cold position.
yes, after 9 years it needs to be recharged. Have a shop with a good reputation do it. Dont go cheap. It should hooked up to a machine so you can see how much leaked out,and test for leaks. shouldnt be more than $100