No Compression
#11
#12
Compression may change a bit when checking a cold vs hot engine but you are not going to read "no compression" because it's cold.
I can't imagine why an engine would go from "runs very smooth and no problem at all" to "no compression found on any cylinder" after simply sitting for a few months. Even if the cam jumped time, I would expect to get something on at least a few cylinders.
I can't imagine why an engine would go from "runs very smooth and no problem at all" to "no compression found on any cylinder" after simply sitting for a few months. Even if the cam jumped time, I would expect to get something on at least a few cylinders.
#13
The only thing I can think of...is...maybe the check valve in the sparkplug end of the compression tester is failing to hold pressure or is missing. I've seen this happen, where the check valves inner portion/core comes lose and falls out...and the tech/mechanic doesn't realize it and you get no reading...and no, it wasn't me...lol.
I'd have them check another engine with this tester or use a different tester on yours or take your vehicle somewhere else for a second opinion.
As stated...engines just don't lose compression from sitting idle for a length of time.
Brian.
I'd have them check another engine with this tester or use a different tester on yours or take your vehicle somewhere else for a second opinion.
As stated...engines just don't lose compression from sitting idle for a length of time.
Brian.
#14
engine doesn't need to be warm. when you start you truck in the dead of winter do you have a block warmer? no. im not saying it should be tested at 32 below zero, but shop temperature is fine.
#15
#17
#19
Try this... it worked for me...
"Hmm. Yeah. Unlock doors with key. Put key in ignition. Turn to position two. Leave key. Roll down driver window. Leave driver door open. Unhook battery. Touch battery wires together. Let them sit 5 minutes touching each other. Hook back up to battery. Drive away happy (hopefully)." ;-]#
"Hmm. Yeah. Unlock doors with key. Put key in ignition. Turn to position two. Leave key. Roll down driver window. Leave driver door open. Unhook battery. Touch battery wires together. Let them sit 5 minutes touching each other. Hook back up to battery. Drive away happy (hopefully)." ;-]#
#20
Try this... it worked for me...
"Hmm. Yeah. Unlock doors with key. Put key in ignition. Turn to position two. Leave key. Roll down driver window. Leave driver door open. Unhook battery. Touch battery wires together. Let them sit 5 minutes touching each other. Hook back up to battery. Drive away happy (hopefully)." ;-]#
"Hmm. Yeah. Unlock doors with key. Put key in ignition. Turn to position two. Leave key. Roll down driver window. Leave driver door open. Unhook battery. Touch battery wires together. Let them sit 5 minutes touching each other. Hook back up to battery. Drive away happy (hopefully)." ;-]#