I have a 1989 Ford Ranger with the orginal radio in it. It has a high pitch noise in it when it is cold. It works fine in the summer and even in the winter after the truck warms up.
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Vacuum leak around inlet manifold or hose, spray around with D 40 or similar,engine will speed up when you find the leak. DO NOT spray around hot exhaust or you will have a fire.
Your water pump may need a lubricant. Water pump lubricant is added to the radiator.
When the weather is warm enough, and the engine runs hotter, then the thermostat opens more frequently, the lubricant will mix with the radiator fluid and circulate through the sysem lubricating the water pump.
I had squealing problem after changing the serpentine belt.
Tried changing idler sprocket, no difference.
I added the lubricant to the radiator, unfortunately the weather was cold, and the lubricant did not mix well with the radiator fluid, and did not circulate well do to cold weather and short drives.
Once the weather got warmer and the thermostat opened more often the squealing stopped.
In my opinion, it's almost certainly the radio. Even when turned off, it is still alive managing a few other things (like chimes) until you exit the vehicle, and I suspect that part of the radio is faulty.
Hi! The radio may not be bad but I do believe that the noise filter is faulty. You will need to replace the noise filter, it is the box connected to the radio going to the speakers. Once replaced, I believe you'll be good. Hope this helps and have a good one!
Jack the front of the car up then spin the wheels this will give you alot better idea of where this noise is coming from. Check the brakes agian and the wheel bearings.
Check your battery first. Cold weather does horrible things to car batteries... if it's more of a grinding sound I would say that your starter gear is bad. I believe they call it a ring gear? I had a similar problem with a kushman scooter that I use to deliver snowcones through the neighborhoods. It has teeth that need to engage and if those teeth have been grinded down it will have a hard time engaging....
Did you get the right starter? Did you put the starter straight? Did you lock the screw evenly? where this noise from?You mentioned the noise like high pitch grinding noise, is it from the starter area or flying wheel?
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