engine power loss when a/c is on
iamammon
10-16-2003, 05:31 PM
1997 bonneville se
when driving on the highway consisent speed with a/c on, then try to accelerate and nothing happens have to pump 2 -3 times then it goes ,but with a/c off no problems.
Any ideas?
when driving on the highway consisent speed with a/c on, then try to accelerate and nothing happens have to pump 2 -3 times then it goes ,but with a/c off no problems.
Any ideas?
tman
10-16-2003, 05:55 PM
I believe the car is in high gear, and the A/C does draw power from the engine, so you'r having to put the pedal down, to get a "kickdown," that is, an automatic transmission downshift. Without the A/C, it's apparently not necessary. watch your tach next time it happens, and let us know.
Flatrater
10-16-2003, 07:04 PM
Your shift pattern is different with AC on/ off and you might be noticing it more with the AC on. The AC system is a big power hog on the engine!
iamammon
10-16-2003, 08:57 PM
tman2093
Ex. driving 65 mph and want to go 70 u give alittle gas and nothing happens , tach stays the same and acts as if it wants to die,after pressing the peddle abit (play with it) then it goes, and it does it between 55-70 only
Flatrater
i know it is a power hog but it should not be doing that, (i spoke with the previous owner and it never did it to him)
Ex. driving 65 mph and want to go 70 u give alittle gas and nothing happens , tach stays the same and acts as if it wants to die,after pressing the peddle abit (play with it) then it goes, and it does it between 55-70 only
Flatrater
i know it is a power hog but it should not be doing that, (i spoke with the previous owner and it never did it to him)
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