You are not using your meter correctly.

 

Yesterday the doors were open for much of the work being done, the car started today and ran a while placing a 14.2 charge,for a while and then was shut off, that was the surface charge after that with the hatch open and 3 courtesy lings illuminated... Thanks for your comments.

 

It is also a voltmeter, note the higher voltage scale a 12 volt battery would never have unless the engine was running and yes it is old but still works.. Thanks for your comments.

 

No, I also have a 2010 SS that is no longer having overboost problems it had back during the time of the missed reply back, already apologized for, sorry for the confusion or misinformation...

 

Couldn’t watch the whole thing. 7-1/2 minutes just to get the thing off. Don’t know if he disconnected the battery but he should have.

Not wrong with all the cleaning, but prolly unnecessary. Not sure about the dielectric grease; it ain’t a boat. Sometimes Often, just pulling and replacing that type of connector “fixes” a corroded connection.

 

Oviously did not see the disclaimer.

 

Update to everyone following this Thread after giving a bigThank You to all that replied, helped, showed interest etc."THANK YOU" Gentlemen..

Now as mentioned during the replies and questions the problem was already listed so what I found and repaired as I finally started exploring around under the hood for broken wires in the harness, was the engine control module has 2 plugs into it, the bottom one of the pair had been taken out for the transaxle replacement and simply not put in without bending some of the pins on the module itself. After 3 tries at getting all the bent pins aligned correctly to fit back into the female side of the connection my problem was solved.. The bent pins leaned toward the other pins in the next row in at least 2 different locations, both on the outer ends of the pin rows, seemingly touching and able to make a connection to other opposing pins while not making a connection to where they should have..

I was very careful not to break any of the pins and finally got them lined up well enough to enter the receivers they were intended to connect to..

After that I had the famous high idle problems with the Throttle Body but cured that by putting the original part back on and while I was at it returned the other part thrown at it too, that being the gas pedal assembly and once that was done the HHR was back to its usual self.

HOW it ran all of those months like it was without this problem is a miracle of some sorts though it did have some intermittent problems as told by my son in law "now'.. Bottom line is it is fixed, I drove it many miles, got it inspected as is the law here annually and renewed the registration which includes an Emissions Test so all systems are functioning..

Observations made were the Bosch throttle body purchase new was not already dialed in or I would not have had the problems I did, High Idle and all many others have described here when "Re Learning" process was undertaken to dial in their replacement part or one that had been cleaned and had the problem afterwards..

A side note to all of this is yes I do have a 2010 HHR SS and mentioned I had purchase 2 batteries in the past for them, turns out my estimate of age was off but the one in the SS died during this adventure and was replaced and the side of the battery had a date of 2017 on it. I also took advantage of the new battery by placing it in the 2008 2LT with the problems to see if it fixed anything but it made no difference and believe it or not the battery in that 2008 HHR 2LT is still working fine in its home vehicle despite its age.. [Duracell Battery ]

In conclusion "Man Made" problems are hard to find but after this adventure I'd recommend starting anywhere you know something had to be disconnected or is even in the area of a repair made previous to the problem..

One question, are any members thinking of upgrading their HHR's to later model drive trains offered on for example Cadillac's with the 2.0 Turbo configuration or for that matter any drive trains other than factory HHR/Cobalt etc.? I know one person put a V/8 in his, big job but I was thinking of maybe anything, possible even a V /6 dropped into one of these HHR's we all know we bought because they looked like the old cars we all loved and never forgot.

Though the Old Car look was the hook that got me, I actually was saving money for a "Ford 49" whenever it came out but when it was clear after years waiting, that wasn't going to happen and I couldn't convince myself to buy a PT Cruiser I went shopping for a Super Sport HHR and had I been successful at finding one my wife could drive [Only Stick Shifts were around then] I ended up buying the 2 LT with a 2.4 instead and waiting for an SS automatic to turn up sooner or later, which became "Later" but I took it as, "A time for Everything and Everything in its time" end of post...

Some adventure history files attached..

 

Glad you got your HHR back up and running! Enjoy the ride!

 

Quote:

Originally Posted by Oldblue

Glad you got your HHR back up and running! Enjoy the ride!

Thank you, I always have done so [enjoyed the ride] but only when they were running right and help was always there from this Club so I can't thank you and all the others for always being there to offer advice and instructions, pictures and all.. You take care Old Blue.

This not the actual Control Module but the area of trouble was on the Gray side and top and bottom pins at the very end being bent and touching the pins across from them on one row only..

 

DonBrew, I'm looking for a replacement "Red Cap" that goes over the positive connection as shown in the video here, nearest the front of the car, it was lost when they did the Transaxle, and I only picked you due to the still picture posted here for the Video and my lack of the actual name, once again pictures are valuable..I have searched Chevrolet dealers on line, Amazon.com and Rock Auto and would be happy with a used one if anyone else that might read this has one..

Regards and Thanks for your help over the years as well..