Anybody having this happen to them???
I have an 07 SS/SC with the G85 option. I'm sitting at a light and it sounds like sombody is knocking on the right rear of the car. 3 or 4 "knocks" and then it goes away and doesn't happen again. Kinda strange. It doesn't happen all of the time, just after the car has been sitting out all day at work. Any ideas??

 

im pretty sure its the fuel bump. common problem with the balt. some ppl refer to it as the evil trunk monkey. i dont understand why though...

 

very common. use the search for tons of info about this. nothing to worry about.

 

Not to sound like a dick, but this has been answered numerous times. Search is your friend. lol...It's an emmissions deal

 

theres like a whole bunch of threads on this and has been determind its a ghost!

 

LOL... trunk monkey. Thanks. Do I need to worry about this?

 

Who You Gonna Call!?!?!

 

whos there?

 

stop kidnapping people and putting them in your trunk?

 

^^^ lol no. stop kidnapping evil monkeys lol

 

Yeah mine does the same thing like 10 sec after i turn my car off

 

i came to this thread hoping to read some sweet knock knock jokes.

 

Here's ya some info from GM. It's a real common thing. It happens on both my balts.



Subject: Noise from Rear Of Vehicle - keywords canister cold CVS click evap knock L61 LE5 noise rear solenoid tick vent #PIC4317B - (01/23/2007)



Models: 2006-2007 Saturn ION

2006-2007 Chevrolet Cobalt

2007 Pontiac G5

2005-2007 Pontiac Pursuit

with Engine RPO L61 or LE5



This PI is being superseded to update technical information. Please discard PIC4317A.



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
A noise may be heard from the rear of vehicle; typically 3-5 knocks during initial cold start. The noise may sound like someone outside of the vehicle is tapping on the back window or on the rear exterior body panels.

Recommendation/Instructions:
This noise is from the vehicle's EVAP canister vent solenoid going through the diagnostic cleaning cycle, which is part of the software calibration set-up. Replacing the EVAP canister may not resolve the issue when the vehicle is re-exposed to a cold start. No parts should be replaced. This should be considered a normal condition for 2007 and previous model years.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed

 

Hahaa thanks, I always wondered what that was too

I love how it scares the **** out my friends

 

Nice post

 

For the peeps that dont know what the evap solenoid, I'll post a pic of the little devil for ya

 

Awesome info. Thanks for the posts.

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