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Thump when shifting from P to D...DOJ?


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OK board members,

Here are the symptoms...When shifting from Park into Drive after starting the car I get a thumping sound. BUT, if I try it again no thumping sound. :banghead: If I jump on the gas quickly I can hear a thumping sound. Also sometimes if I am hard on the gas then let off I hear a thump. I know my lower ball joints need replacing, but I think the DOJ is causing this sound. Are my suspicions correct? I only have 10K miles on these reman axles can they be failing already? And if the DOJ fails, what happens? Will it lock up the wheel and cause a crash or just fall into a bunch of pieces then I will have a OWD (one wheel drive) instead of FWD :-\ . As always ... thanks for the help! :brow:

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Dont quote me on this but when you doj it just breaks and you are left with 0WD (zero wheel drive) as these subes dont have locking diffs. Just change into 4wd and you will have a rwd subie untill you fix it. Doj can make noise for ages before completely destoying themselves. I get the thump thump on decelleration.

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I would check my transmission fluid too - my parents have automatics, and if their fluid gets low "bumps" start to appear in the transmission - I hope that's your problem (because it is simple/cheap)

 

otherwise, the DOJ sounds very feasable

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Check for any signs of metal dust betwean the cone washer and hub on the end of the cv. If the splines are worn in the hub or axle it can move back and forth slightly and over time will get loose because the cone washer wears away. If that is the problem replace the axle and hub.

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  • 8 months later...

Replaced both sides lower ball joints recently and all is well with the world.:banana: I never knew worn ball joints could cause that kind of racket. Now if I could get rid of the TOD I'd be in great shape! Anyone know if I can get to the "Mickey Mouse" gasket without yanking the engine? Thanks all.... :banana:

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Replaced both sides lower ball joints recently and all is well with the world.:banana: I never knew worn ball joints could cause that kind of racket. Now if I could get rid of the TOD I'd be in great shape! Anyone know if I can get to the "Mickey Mouse" gasket without yanking the engine? Thanks all.... :banana:

 

You can get to teh oil pump where the mickey mouse seal is by pulling the raidiator, and and taking the timing belt covers off. There will be more than enough room to do it. I changed mine from the bottom of the car, but you can do it from standing position too

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