Engine/Transmission (1998.5 - 2002) slow oil pressure on start and noise

[JStauble]

Hi, new here and looking for some help.

I have a 99 24V with 160k on almost stock (intake, exhuast) motor. Recently I have heard some awful noises randomly when starting. It will start fine but will make a terrible squeeling noise, when I look at the oil pressure there is none! As soon as the pressure comes up the noise goes away. This happened twice last months but maybe once a week lately. I am worried it is running dry for a second and going to kill the motor. Any advice or input is apreciated on whats wrong. Also if its connected, I am leaking from the vacume pump and also seems my tensioner belt is failing as the belt has some slack at idle and sqeels a bit. Thanks Josh

 

[MHagen]

Hi, new here and looking for some help.

I have a 99 24V with 160k on almost stock (intake, exhuast) motor. Recently I have heard some awful noises randomly when starting. It will start fine but will make a terrible squeeling noise, when I look at the oil pressure there is none! As soon as the pressure comes up the noise goes away. This happened twice last months but maybe once a week lately. I am worried it is running dry for a second and going to kill the motor. Any advice or input is apreciated on whats wrong. Also if its connected, I am leaking from the vacume pump and also seems my tensioner belt is failing as the belt has some slack at idle and sqeels a bit. Thanks Josh

Sounds like you need a new belt, possible tensioner. The slow oil pressure is normal. If you conserned try plugging it in. there is a plug by the right headlight. You may have to open the hood to find it. I plug in anything below 30 degrees, not because I have to but its just easier on the equiptment. It will always start it just sounds nasty.



Mike

 

[JStauble]

Hi,

So you don't think it would be the motor running dry? I just put in a new Napa tensioner because on the old factory one you could see it letting up and the belt hopping around. Well I put the new one on and it does the same thing but more of a squeel hop. So tonight (after my first post) I went and purchased some belt dressing and sprayed it on and it instantly started to sqweel. I noticed what looks like the bottom left accessory (ac pump?) wasn't spinning much? Wondering if this has been failing and causing the belt to spin over it and make the tensioner flap around. Still worried about the awful noise. Josh

 

[MHagen]

I would get a new belt. Are you sure the ac pully isnt turning? Could it be that the ac clutch is disengaged? If you are really that concerned about it you could remove the belt and start it and see if it still squeels.



Mike

 

[Bishkoff]

I also had a bad squealing problem with my belt. I sprayed belt dressing on it and it only got worse. Put a new belt on and still had the same problem. I crawled underneath the truck and found the whole front of the engine covered in oil, including all the pulleys. After a short search I found the Crankcase vent bottle full of oil, didn’t know about emptying it at every oil change. Emptied the bottle and wrapped an old clean sock around it and degreased the engine and scrubbed all of the pulleys with good old Dawn dish detergent. I then put on a new Goodyear Gatorback belt and haven’t had a squeak since. This was about 10,000 miles ago. This may not be the same problem that you are having, but I hope this helps.

 

[JStauble]

Thanks for the tips!

I will pull the belt tommorow and start it up, I will also check the crankcase vent bottle which I never knew off?? Hopefully I can figure it out! seems like everything on the truck is going (radiator, 4wd vacume disconect, vacume pump seal, tie rod ends, on and on!)