What is the clunking and popping even in neutral?

Pete Magnus

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HI everyone I’m the new guy, hope everybody is doing well. I've done some searches and I think I may have a unique problem then again I may not be alone in this situation so here goes: My 1999 Yukon Denali pops and clunks when it’s cold and also shutters like it’s going to shut off, but it stops after I gun it few times and or it warms up plus there is a smell like burning or something (trans maybe). I have greased slip yoke, removed fuses (T-Case, 4wd and cruise control fuse) trying to trace the problem. Starting to get really tired of this problem, think I may just run over it with my lifted Ford F-350.:lol: My sister had the transmission replaced about a year ago while she owned it, and that’s why I can’t figure out what the deal is. It throws the check engine light on, but after it smoothes out the engine light goes off. Think I covered it all; please any help or advice would be greatly appreciated. I got this truck for a steal ($800 and it looks new) and because of our new addition coming in late June (it’s a Boy). I have got most of the bugs fixed on this truck but need a little help with this one. Thanks again guys.
 

CJ Hungus

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Re: What is the clunking and poping even in neutral?

Have you had it scanned for codes?
 

slims

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Re: What is the clunking and poping even in neutral?

Video it so we have a better understanding of whats happening or check the codes
 

daddy

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Re: What is the clunking and poping even in neutral?

Does the noise have any discernible pattern as if it were in concert with the parts of the engine moving or is it more random? You could have a cat going out.
 

slims

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Re: What is the clunking and poping even in neutral?

All the reason to get rid of em :jester:

Welcome BTW.
 

daddy

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Re: What is the clunking and poping even in neutral?

:facepalm: :lol:
 

Pete Magnus

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Re: What is the clunking and poping even in neutral?

I will try and get a video up today, I have not had scanned for codes yet. When I acclerate it pops, clunks and jerks, then when i shift to neutral and let it idle, it will surge a fews times like it wants to shut off and hell it did once. Also, while in neutral, if I press the gas I still hear the pop/clunk but not as loud.
 

Texas Jim

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Re: What is the clunking and poping even in neutral?

Really need the codes...
If the check engine light comes on... there are codes stored...
 

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