2007-01-25 19:36:39 · 4 answers · asked by a b 1 in Cars & Transportation ➔ Car Makes ➔ GMC
If you're not seeing any white smoke when the engine is running, and you've checked the oil to see if the oil looks white-ish on the stick, then take it to the parts store or raditator shop and have it pressure tested. the normal pressure on the cooling system is 15psi, they can run it up a bit higher and start looking for where your system is leaking. otherwise, if you have a good mechanic that you trust, leave it with him and have it pressurized overnight to see where the leakage may be. if they put cardboard underneath the car overnight, any leakage will be spotted (and caught) and they will be able to better pinpoint where the leak is comming from
2007-01-26 07:20:32 · answer #1 · answered by greywolf 2 · 0⤊ 0⤋
Remove the oil cap where you pour oil into the motor and inspect for any sludge that looks white or greyish. If this is there you most likely have blown an intake or head gasket. Be sure you don't have an exterior leak by filling coolant system and pressure test to inspect. Also check the coolant reservoir and hose to the cap as if this is leaking it will always drain the coolant level but will not be recognized as a leak as it is always empty. These cars have trouble with the heater hose quick connectors rotting away so have a close look there. Good luck.
2007-01-27 05:46:01 · answer #2 · answered by Deano 7 · 0⤊ 0⤋
After the car sets for quite a while (6 or 7 hrs) start and look to see any white smoke coming from exhaust pipe. If it does smoke , most likely a faulty head gasket or head
2007-01-25 20:50:21 · answer #3 · answered by Dave A 2 · 0⤊ 0⤋
Uh Oh! Better check your oil! Fast! It might be leaking into the motor!
2007-01-25 19:46:50 · answer #4 · answered by Simple 8 2 · 0⤊ 0⤋