Well took my truck to the shop to have the a.c. checked and fixed ..was told I need a expansion valve and dryer then next day told I need a evaporator coil..is this a hard item to install I see it's right by the floor on passenger side of truck..ill install it myself if it's not too much trouble..reason is the pressures are you high on the system according to the shop..any help would be appreciated..
Ac trouble help 97 freightliner fld
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by earthmover, May 29, 2017.
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Change the mechanic. he doesn't know how AC system working. did he check high pressure switch and wires?
Did he charge system with proper volume of refrigerant?
He just making money of you.BoxCarKidd, lilillill and Bean Jr. Thank this. -
Lol I feel the same way..i thought high pressure switch myself..guess I'll try another shop ..thanks
Snailexpress Thanks this. -
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Is the engine fan running? A lot of money has been p i s s e d away because the condensor, CAC, radiator and or the space in between them is restricted. A good cleaner with hot water then air in both directions goes a long way then repeat. I have seen large differences even with some cores that looked good.
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I was looking on there site today at 1 -
The engine fan was running but he said he pulled a vacuum on it and recharged it and no problem with the fan ..but he said he had high pressure so he removed the charge.. -
Blow air through all the lines to check for a restriction. Before you take it apart look for a frosted line. I thank those had a short flex line between the evaporator and the fiewall-expansion valve. It it is frosted up in the middle it is bad.
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Yes it does
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