This will cause the oil to froth up and decrease its efficiency in dealing with lubrication and heat. Just drain out the excess oil and start over. #3 –Oil is Dripping Onto Hot Engine Parts. Another scenario is this: Your head gasket or valve cover gasket goes bad, and your engine is leaking a bit of oil. That oil will drip onto the other hot
Vehicle: !998 Ford F150 4.6L. p0171. p0174. commented Aug 27, 2017 by inspector (101 points) yes by not properly controlling egr due to and or venting vacuum ; all of this while engine running. can also cause ac to deflect to defrost vents in some older explorers / mountaineers.
If this cooler fails or the coolant passages become clogged (a common occurrence on the 6.0L), it may reduce flow to the EGR cooler, or create a sludgy oil/coolant mix that won’t flow through the cooler. If your engine has fuel issues, it can increase the amount of soot in the exhaust which will then coat and often plug your EGR cooler
Check the engine light. When the fuel to air ratio is high, you will have the check engine light coming on. The engine control module controls all the sensors, and if a sensor in your car misfunctions, it will light up the check engine light on your dashboard. 2. Fuel smell from exhaust.
If the EGR cooling system develops a leak, water can escape into the recirculating exhaust gas, and pass through the engine, and disappear out the exhaust pipe, with virtually no symptoms, except of course for gradual coolant loss, the cause of which can be hard to diagnose. The loss is easy to identify. Where it’s being lost … not so much.
Causes of bad compression can be piston rings or valve stems/seats wich can be ruled out or confirmed with a squirt of oil during a compression test, if the compression increases after some oil in the cilinder its due to bad piston rings Turbo can be checked on axial and radial play/ excessive oil in the intercooler or just a noisy turbo. . 365 190 283 151 159 214 263 0 19

can a bad egr valve cause oil leak