It DID start after the Water Pump was put on. And i have not yet been able to detect a vacuum leak. The quot;whistling noiseseems consistent with RPMs, and the quot;dieseling(run-on) stopped in all but a rapid succession of 5 quick ~1-minute start/stops when the engine was fully warmed.. then it minorly ran-on.Could i be driving myself nuts over a Water Pump sound, and if it IS a Water Pump bearing, do i need a new Water Pump?1984 Chevy Camaro. 2.8 V6 carb'd 165,000 miles Auto.
nicely, whilst you're like me you should make effective your self which you're turning out to be performed what ought to be performed. So, to locate precisely the place the noise is coming from, get your self a stethoscope. we are going to use component of backyard hose for this and it artwork great, 3-4 feet long. place one end on your ear and flow the different end around the engine (being careful of all shifting areas) the place you think of the noise is coming from. this variety you would be waiting to pinpoint the place the noise is and what section is making it. you would be attentive to you have discovered it whilst the noise is loudest. get rid of and replace. attempt this and that i assure you will locate the priority. you will be able to choose help revving the engine at those rpm you indicated. sturdy success!
one tell tale sign of a bad water pump bearing can be a sound like a jet engine, but there are other possibilities too, I take a 4 foot length of garden hose put one end on top of what ever bearing you want to check and stick the other end too your ear.a slight hum is a good bearing, noisy bearings are easy to diagnose this way. Just be careful, no loose clothing or long hair near spinning fan and belts, engine has to be running to hear bearing noises. As to the dieseling noises, this is your engine running backwards. this is extremely hard on an engine. Leave the car in gear then turn it off. if its a stick, put it in a high gear let the clutch out until motor stalls. However dieseling is usually related to timing and poor quality fuel. Change to chevron super unleaded, it has techron which will help clean out a dirty fuel system, your vehicle may have a out of time problem, and or tune up issues can cause this. get this fixed, the fuel milege will be a bit better, and your engine will not self destruct. If the noise is in the water pump then replace it. Sometimes a jet engine sound can also be present in the torque converter in a transmission (automatic only)
Yes the water pump can make that noise even when new. The pump will keep working until the seal fails. You will see water pissing out of a small hole under the pump and that is when you replace it.
