Front end pops in and out of fourwheel drive

After a real serious visual inspection...
& after the vehicle is jacked up and totally secure... try wiggling the wheels by yourself... No play at every joint is what you are looking for... (but keep in mind these thing do tend to fail in pairs).

Still seeing nothing wrong...

Draft a buddy & both of you push those front wheels in opposing directions...
keeping an eye on ALL your U-Joints and/or CV-Joints...

CV = "constant velocity"

That popping is coming from at LEAST one of those.

Still seeing nothing ... get out the manual... for cleaning & repacking your front steering knuckles (also identify the necessary LUBRICANT & necessary torque settings)... in the process you are going to find something SERIOUSLY out of round...

Look closely If any of those bolts are Allen or Torx so your
job does not get stopped for a missing wrench.

You can get a really good idea for parts costs... from ROCKAUTO.

Popping is the last sound before BANGING & smashing...

Hope this is helpful.

Happy hunting!


RockAuto Parts Catalog

This is normally a sign of a leaking exhaust valve, it is too tight. the popping is unburned fuel leaking into the exhaust and then exploding with the exhaust from the next firing, sorry but a big job
Merry Christmas

if its all wheel drive and you cant take it out of fourwheel drive then it was set up from the factory like that and is fine. if you can take out of fourwheel drive then you should.

check rear end to see if ring gear is ok or bearings are ok .check u joints

check your hubb assimbly.put your truck on a jack and move the tire if there is play your hubb is done need new ones.also check your breaks.

depends on where you hear the noise.. could be a brake caliper sticking or a universal joint going out or has went out in the drive shaft. while driving does it make the noise constantly or just when taking off?

I am assuming it is a front wheel drive vehicle? If it is the problem is probably the CV joint on one side or both, is it a clicking or popping noise?

There is a TSB for replacing the IWE ( Integrated Wheel Ends ) solenoid, as the 1st design can ingest water and introduce it to the IWEs, causing low vacuum, and the gears for the IWE are grinding.

http://my.voyager.net/~sscully/file_tsb06_08_15.pdf

To cure this until you get the new IWE solenoid ordered and installed, pull the vacuum lines from the IWEs and plug them. This will leave the IWE gears engaged, so they are not trying round off the teeth.

There are 2 lines to the IWE, 1 is the vacuum line, the other is a vent line, that routes into the engine compartment, with an open end, make sure you pull and plug the correct line.

This will have the front hubs engaged to a dead axle, so it will decrease mpg, and you will feel a bit of loss of power, but better than ruining a set of IWEs that will cost ~500.00 to replace.

probably a leak in the vacuum line. same thing happened to me

they have had some problems with the drive shaft from the transmission to front diff i usually remove it on a flat surface and road test if noise is gone repair or replace shaft