[sanboy]

I haev been to the dealership 3 times.. the last time the service manage r went for a ride with me . and he could feel it .. it ended after 2 days of them looking into it .. that he said . : we know somethign is wrong .. but we dont know what " .. dumbest thing i have ever heard

no codes, pressure in the a/ c is fien . ( so they say ) ..

WHEN i put the a/C on MAX .. and drive at a constant speed .. 3 rd gear around 2500 rpm . the car starts " round and round surging" .. alomst like the car is MISSING .. if i turn the A/C off the car is fine .. then i turn the knob to NORMAL A? C and its fine .. but if i go back to MAX .. here we go again ..

any ideas.. at all....... seriously coudl use any help

[sanboy]

they told me they did a pressure check on the a/c and it was fine . so i dont know

[nails79]

maybe a vacuum leak??? with the a/c in max position it is circulating the same air in the car, maybe a vacuum line going to a damper??? just a guess

[sebastian]

maybe im dumb for suggesting... freon? sounds like the compresor keeps cycling on and off causing the surging... hmmmm. anyone else got something to add?

[sanboy]

well the dealership said i wasnt low on freon . so i am puzzled.. they did a dull A/C check .. " or so they said "
and it was fine .. as i said . i really am stumped.. is there any way to test the compressor ?