my 08 hhr ss stalls when you turn the wipers on or the ac on it also cycles the rear wipers when starting and when you it stalls any suggestions the car
has been sitting for a few months thanks for any help

 

Sounds serious. I'm thinking varmint or insects have chewed on the wires in the waterfall since that's where those switches are, in fact they are all within a couple inches of each other.

 

That and or low battery level, loose ground wires come to mind also.

 

As Oldblue eluded.. How old is the battery?

 

graffixx
Reading some other posts of your's, it appears that your SS is highly modified if it's putting out 365-375 hp.
Without knowing what mods and tune your running, it's a little hard to give any good advice. (Other than the basic things that the other posters mentioned. )

Just curious. What was the fix for your other problem regarding a fuel pump issue ? Never saw a follow up post in that thread.

 

I have most of the hahns modifications turbo intercooler exhaust ... tuning is done by trifecta and I put a factory tune back in it and it still had the same problem I even drove it at 50 turned on the ac and the ignition shuts off and rear wiper cycled had to put it in nuetral and restart it what is the area I should look for rodent damage battery is new but does seem to turn a little slow I will check grounds

 

As soon as I finished the mods the tranny went so it has been down until this week I am going to order zz cam and fuel pump im am hoping that will be the fix I have a local guy who built the tranny added extra clutches modified pistons 3000 converter ... I will let everyone know how long that last lol

 

Also the front wiper is not working and I'm getying a check engine code p0629

 

Sounds like you messed it up GUUD.

 

P0629: P0629 Fuel Pump 'A' Control Circuit High OBDII Engine Light Trouble Code | Engine-Codes.com
Possible causes

- Faulty Fuel Pump
- Fuel pump harness is open or shorted
- Fuel pump circuit poor electrical connection
- Faulty Fuel Pump Relay
- Faulty fuel pump control module (if applicable)



Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

P0629 Description
When the ignition switch is turned ON the Engine Control Module (ECM) will power the fuel pump relay and run the in-tank fuel pump.


Read more: P0629 Fuel Pump 'A' Control Circuit High OBDII Engine Light Trouble Code | Engine-Codes.com