3 Questions

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1. Headlights and dashlights dim when i roll the windows up,,,when they get all the way to the top...fully closed,,someone said this was normal. is it?

2. clunk when shifting from reverse to drive. u-joints?

3. some kind of grinding noise, when im coasting in the truck, after i let off the gas. i can feel it in my feet on the floor boards. its almost feels like something is not lubed up enough or something. anyone have any ideas on any of this? thanks guys!

[JRLZ71]

My truck headlights dim when they roll up, down, and even a couple of seconds after I take off. It does the same thing in 2 of my friends and my brother's truck too.

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ok, thanks, just making sure it wasnt a battery issue. they also dim a little bit when i first apply the brakes, only when getting off the highway though, at high speeds.otherwise they dim anytime i roll up the window

[bossier62guy]

1. Headlights and dashlights dim when i roll the windows up,,,when they get all the way to the top...fully closed,,someone said this was normal. is it?

2. clunk when shifting from reverse to drive. u-joints?

3. some kind of grinding noise, when im coasting in the truck, after i let off the gas. i can feel it in my feet on the floor boards. its almost feels like something is not lubed up enough or something. anyone have any ideas on any of this? thanks guys!

 

 

I wouldn't worry about #1 unless you're getting some other indications as well. #2 could be your slip yoke, common issue. #3 is going to be tough to get help with unless you give us more details...can you hear this grinding or just feel it? if you can hear it what area does it seem to be coming from? does it happen at all speeds anytime you let off the accelerator? etc...

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i cant hear anything..i can just feel it. and yes, it happens at all speeds. whether im cruising around the city, or on the highway, just when i let off the gas pedal

[JRLZ71]

Do you have some kind of after-market exhaust?

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i just put a cherry bomb on a few weeks ago

[JRLZ71]

Did it do the grinding before then?

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yes sir. i havent had it to a shop for an oil change in a long time, pretty much cuz im unemployed and its cheaper for me....so i havent lubed anything up. could that be a reason maybe?

[bossier62guy]

yes sir. i havent had it to a shop for an oil change in a long time, pretty much cuz im unemployed and its cheaper for me....so i havent lubed anything up. could that be a reason maybe?

 

How many miles do you have on it?

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just turned 116,000

[bossier62guy]

just turned 116,000

 

If it were me I'd go ahead and pull my driveshaft and grease that slip yoke. While you're at it inspect those u-joints closely. Maybe some of the guys that are fast asleep right now can add to #3 when they get up and get moving tomorrow.

[JRLZ71]

Well, this is just from my experience, but I know when my truck idols and when I put it in cruise the gas pedal has a little vibration to it. It started doing it when I put my exhaust on. I would just imagine it's the noise of the exhaust causing this vibration, or "grinding" in your case.

[hockeypro1411]

Number 1 is normal.

 

Number 2 is, as said, probably the slip yoke. To grease it, just pull the driveshaft, and pack marine grease into the splines on the inside of the yoke (this will be at the transmission/transfer case side)

 

Number 3 could very well be just the exhaust. Might as well check the wheel bearings and grease everything up real good anyway.

[fraiolib]

ever had a tranny service done? check the level and see how black the fluid is. my 97 did the same thing when it needed a tranny service. my friend/mechanic told me that the tranny was slipping a little bit when trying to hold back