[Z06] 2003 Zo6 no compresion
Thread Starter
Heel & Toe
Joined: Apr 2010
Posts: 20
Likes: 0
From: ponte vedra beach fl
2003 Zo6 no compresion
Hey guys,
Im new here and thanks for reading this. I have a 2003 Z06 with 54k miles. It has dynatech full exhaust with headers and longtubes with cats, WCC hurricane intake, 170 thermastat, and was just dynatuned 2 weeks ago at 456hp. The car has driven well since the tune, but yesterday i went to get an oil change at a local jiffy lube. They had done the car before with no issues putting in the mobil 1 syth oil. I left the lube shop and drove approx 10.5 miles and the engine started rattiling and looseing power so i pulled over. Called the lube shop manager and he came out to were i was and looked at the car. Oil is full, oil filter is ok, no oil around drain plug or anywere on engine at all. so i had it towed to a shop. Got a call today and they said the did a compression test and #4 has low to no compression?? but they are still looking into it. They said maybe a bad valve, rod, lifter or whatever im no mechanic. Does anybody have any idea what may have caused it. The car was running fine with no issues at all then bam... it sounded like it was running on 1 cylinder and rattiling and knocking. Any advice would be helpfull so i dont get taken for a ride..
Im new here and thanks for reading this. I have a 2003 Z06 with 54k miles. It has dynatech full exhaust with headers and longtubes with cats, WCC hurricane intake, 170 thermastat, and was just dynatuned 2 weeks ago at 456hp. The car has driven well since the tune, but yesterday i went to get an oil change at a local jiffy lube. They had done the car before with no issues putting in the mobil 1 syth oil. I left the lube shop and drove approx 10.5 miles and the engine started rattiling and looseing power so i pulled over. Called the lube shop manager and he came out to were i was and looked at the car. Oil is full, oil filter is ok, no oil around drain plug or anywere on engine at all. so i had it towed to a shop. Got a call today and they said the did a compression test and #4 has low to no compression?? but they are still looking into it. They said maybe a bad valve, rod, lifter or whatever im no mechanic. Does anybody have any idea what may have caused it. The car was running fine with no issues at all then bam... it sounded like it was running on 1 cylinder and rattiling and knocking. Any advice would be helpfull so i dont get taken for a ride..
Team Owner
Joined: Aug 2006
Posts: 30,897
Likes: 45
From: Picking on the weakest kid in the yard.
Headers and longtubes are the same thing. And how did you come to 456hp? Some calculation of assumed drive train loss? It's better to just state what it made at the rear wheels instead of guessing what that means at the crank. 
