losing compression?

[91'explorer 2wd]

i'm not sure but how do i tell if i'm losing it? the compression that is . she sounds different when i turn her on. i don't know it just sounds alot more sluggish. she still goes as fast as b4. if fast is the word. .

 

[joehawk]

Compression test, not that accurate but cheap. Best is Leak Down Test. It is much more accurate. url with explanation http://www.geocities.com/dsmgrrrl/FAQs/leakdown.htm