Check the oil in the engine?
I know there a little more oil then what it should be. And the oil is pretty clean
I lost acceleration pressure power when I turned on the AC,I put in a new fuel pump and fuel filter but still no pressure. I know I have a leak somewhere and the oil is green . I also have a new egr
Sorry the oil is not green it's dark
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SOURCE: screech in engine. after serpentine belt stops
Check if screeching is related to engine vacuum.
Briefly remove (or loosen off) the oil filler cap - if noise immediately stops high crankcase vacuum is the cause. Check / replace PCV valve to fix.
If above is not the cause, listen with a short length of hosepipe to try and narrow down noise source.
Silicon lube spray or pencil lead graphite on a selected belt should cause sound change if it's caused by that belt.
SOURCE: i have a 1990 jeep YJ replaced the alternator and
If the belt is not tense enough it will squeal, so make sure it's tight enough. Otherwise you can use a stethoscope or long screwdriver up to your ear to isolate the source of the noise.
SOURCE: noisey drive belt, possibly alternator, belt
sounds like idler bearings but you have to release the tension to check,Also you can check the rest of the pulleys also at this time. I dont think you have to drop the engine.
SOURCE: On a 2002 Grand Prix, have a serpentine belt and
serpentione belt sounds as if it is stretched. first try to reseat serpentine belt. if still a problem then go buy new belt at autozone. also buy some belt dressing. this should fix the problem. if this doesnt solve then you need to buy a new idler arm. relatively easy fix.
SOURCE: High pitched howling and screeching (yes two
When the AC compressor kicks on, an electrical load is placed on the alternator and the drive belt that turns the alternator pulley, if not tight enough, can cause the belt to squeal. Replacing the belt should help with that noise if the belt is stretched from wear. The screeching noise can be from a bad idler pulley, a bad belt tensioner pulley or a bad alternator pulley or a failing clutch on a very old ac compressor and rarely a water pump pulley. To check pulleys remove the drive belt and turn them individually to see if they can be tilted up down or sideways with play in the "bearing" of the pulley. Also, you may wish to visually inspect the clutch on the ac and look for melted black rubber around the bolts that secure the clutch to the compressor (stinks,smokes and melts these rubber areas if ac compressor clutch fails).
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