probable since its related to the speed of the gears, might wanna check with a transmission professional
Don't tell me that; it sounds expensive. After posting, I did some searching online. There were several ideas from similar situations. Some said it was the intake manifold, vacuum leak, exhaust. Do any of those seem like it might be associated with the speed of the gears as well?
Hey Im new to forum dont really know how to navigate site yet but I have some questions so here goes. I have a 98 grand lmted with a 5.9 want to swap 249 for 242, have read many threads but want to know if there is truly a "bolt on" 242 and if so what year is most compatible, I have been to local bone yard and they have many. Please help!
try reving the motor while it is in park and see if it makes the noise there too ...
Just tried it and yep, it whistles while in park as well. It took about 10–15 seconds of running before it started to make noise, but that seems rather insignificant. My wife said she could hear the noise all the way in the house. Does the fact that is also makes a noise even when in park mean it's not the transmission?
if its an RPM dependent whistle its probably a vacuum leak. check your IAC valve for proper adjustment, check all the vacuum lines to see if one is disconnected or cracked. The only other "whistle" I know of is the transmission at speeds due to restricted flow but thats usually due to a clogged filter and you changed that.
are you sure its a whistle? and not maybe a bearing whine? the idler pulleys make an interesting whine noise almost like a supercharger when they go bad.
[SIZE="1"][B]95 ZJ 5.2[/B]- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.[/SIZE]
[QUOTE=slayercr23;12630497]How would i go about Stroking it?[/QUOTE]