2.4L Pontiac Vibe 2009-2010 Alternator replacement

Asked by May 12, 2017 at 09:09 PM about the 2009 Pontiac Vibe 2.4L

Question type: Maintenance & Repair

I have searched the internet and asked mechanics for days and nobody
seems to have pics or clear description of how to remove the Serpentine belt.
Just about every problem that could exist, does, exist while trying to change
this alternator.
Every post or video I have seen turns out to be the 1.8 engine and not the
specific 2009-2010 model 2.4  that I need to see.
I have been able to release some of the tension on the belt by using the
tensioner bolt but there was still too much force on the belt to get it off of the
pulley completely. (is the tensioner shot?)
I could cut the belt and be done with it but if I can't get enough slack to
remove the belt now; how can I expect to be able to install a new/stiffer belt
over the same pulleys?
Once I have the belt 1/2 off the alternator pulley it sticks out enough to make
it impossible to reach the tension bolt with the wrench.
When I did have the wrench on the nut; the handle would not allow the belt
to come off the pulley and there is also not enough room (or angle) to arc the
wrench so that the tensioner will let the belt have enough play to be
removed.
Tried to remove the stabilizer/mount on the top right of the engine to allow
more access but it didn't want to budge.
  Read that some have used C-clamps to compress the tensioner but can't
visulaize how that was done.
Any help and insight would be appreciated

4 Answers

2,370

Grab the top most, easiest to reach section of the belt with your hand and pull hard enough to make the tensioner swing back. While holding the belt back, take that wrench and get a new hold on the tensioner bolt and crank it back even further. Now, let up on the belt slack in your hand. That should give you enough total slack to slip the belt off one of the pulleys. Might take two people. That's hard to explain and maybe harder to do, but I hope this helps. Be sure to wear eye protection and gloves. Spring loaded stuff can be dangerous. And don't cut the belt. The tensioner will slam back so hard it will break something. Good Luck.

Thank you. I will try this... sounds promising.

Nevr cut a tensioned SERPENTINE belt; ALWAYS use a new BELT,with ALT. replacement ;; and double chk installation for proper charging; Due to bttr quality ,the core should be NEW ; not used; double check grounds and diodes; ALWAYS get the LIFETIME alternator part warranty; MICHAEL

One more SAFETY T.S.B. with ALT.. or waterpump replacement; utilize the breaker bar to LODGE the tensioner...adding friend can help exponentially. while removing the belt THEN reinstalling the belt ; for the tensioner ...F=m*a; while using the breaker bar MAKE CERTAIN of both fulcrum strngth and STATIC contact point... Michael

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