AC Delco Reviews 

The quality is not what it used to be. This AC Delco was 3 years 3 months old, it started acting up about 2 months ago, came out and it was totally dead. So I checked the connections and charging system, they were working fine. Checked to see if there was something drawing it down,there wasn't. Charged it, was fine for about a month, then it was dead one morning. Again Charged it, fine for another month, then dead again. Dead cell.

On July 28th I purchased a #2 NOX sensor for my 2015 Duramax Diesel 3500 Silverado, on July 29th I installed the vehicle following basic instructions found online, which simply said to unscrew the old one and screw the new one into the port in the exhaust.

On July 31st I experienced a secondary issue with my DEF system which resulted in taking my truck to Chevrolet Dealership in Pasco, WA. The dealership, McCurrely Chevrolet, had my vehicle for 4 and a half DAYS, running diagnostics and performing repairs on the vehicle and the DEF system, all of which included confirmation that the #2 NOX sensor was working properly.

I left the dealership on the afternoon of August 6th and drove the vehicle approximately 12,000 miles (I own a transport business) and on the afternoon of August 18th the vehicle lost power and I was forced to take it to a shop in Utah. After 2 days of running diagnostics and close examinations the technician discovered that the #2 NOX sensor was COMPLETELY OUT of the exhaust pipe. The threaded device was hanging as though it had never been installed and was banging off the drive line.

Because the NOX Sensor has failed, the vehicle has failed to properly regenerate and had completely clogged the DPF filters. At this time the shop has replaced the sensor with an OEM part and is preparing to do a complete restoration on my DEF filter system. The estimated cost of all of this work is close to $2600. Not to mention the cost of the rental truck that I have been driving while my vehicle is in the shop, the lost revenue I have experienced because I'm not able to afford to rent a direct replacement 1 ton truck to continue working combined with the stress of trying to figure out how I'm going to even pay the mechanic just to get my truck back because I don't have $2600 after I just spent $4000 less than 3 weeks ago repairing the same system that is now broken.

I'd really appreciate it if Delco would step up and offer some assistance. They declined

Will never buy a AC Delco battery people, Bought AGM from menards batt went bad 8 months later and no help of a replacment, I've been buying super starts from oreillys and no problems having a warrenty claim... acdelco is junk Batterys.

I bought a used crv.2024 .The Owner has recently changed the battery ACdelco brand , and handed me the receipt.
After two years battery is replaced my mechanic said battery getting bad ,not holding charge , but next service might be required replace it.
it has still warranty and already has warning ,so funny ,very bad quality.I need to find ouy warranty details.

do t order anything from this company as you won't get your delivery or your money back. after caller about a £100 item that was marked as delivered they said its not there problem and won't help or replace or refund. disgusting customer service.

Wrong touchup paint sent. They sent touch up pen 2oz instead of the 5oz spray can I ordered and was charged for! To take this back to the dealership is a 20 mile RT for me and would require I take off work. I will not be ordering from them again.

After replacing my Holden Cruze 2013 JH1.8 5 speed engine which went pretty well no issues or problems as many think overall but when I signed up with Acdelco tech-line system delivery things looked straight forward during sps programming that been said issue's arise the software download was picked up as a threat contaminated with virus errors glitches that was affecting/infecting my computer to run normally I’ve disabled my Norton antivirus with little improvement affects I’ve contacted the company several times to resolve this problem they recommended to remove and reinstall the software with new updates which I did without any success but continuous failures it was very frustrating and clear to me why many garages mechanics won’t waste their time performing vehicles programming tasks it’s mostly unfortunately unsuccessful and very costly time consuming following up with the company to fix their service

Bought an AC/Delco battery at the Chevrolet dealership. The unit lasted a little over 7-years before I noticed it did not have the ooomph at engine starting time as it had in the past. With cold winter weather here, I played it safe and bought a new battery. Seven-years of starting a V8 engine and always reliable is excellent.

94 c1500 suburban. 3 ac compressors purchased new and installed by a shop. And all make noise. Horrible product. Horrible customer service

I had an AC Delco battery work without issue for 7 years (bought as refurbished as well). Then, after several times, I started leaving my headlights on for a day after turning off the car and it still worked after jumping! It finally died but really it was my own fault. I was impressed by the longevity. It would've lasted much longer if I had remembered to turn my lights off. Honestly, it behaved like new even after the 1st incident.

I am shocked and disgusted one of the biggest brand names in parts sold out to China.
My brake rotors and pads labeled made in China are you kidding me how many jobs have you left behind in America disgusting. By USA why is AC Delco supporting communist?

I had 2 instances where AC Delco parts failed me. First instance I was on a trip and experienced a miss fire with check engine light. Found #8 spark plug failed. The complete ceramic with electrode came loose from the outer jacket. This means the complete center of the plug was sliding in and out of the jacket portion. These were AC plugs with approximately 40k miles. I have the plug. Second instance, I was changing oil on my 2018 colorado. I removed the oil filter (PF2262G) to find the inner cardboard pleats tore away from the bottom portion of the filter. Part was hanging into the oil passage. Sure hope nothing was sucked into my engine. I was a certified mechanic for 34 years. I will no longer use AC Delco parts. I also saved the filter if I encounter engine problems.

Their AA batteries are terrible. I replaced the ACDelco batteries in my Xbox controller 3 days in a row before finally giving up on this brand. Never buying these again

I bought ACDelco professional left, right outer tie rods and left, right ball joints. The professional cost more compared to others. The ACDelco catalog and the online auto supply store where showing the same pictures of the parts. It clearly shows 555 made in Japan engraved on the parts. To me, it is more expensive but it is worthed because it is made in Japan. When the parts came, the tie rods where made in Taiwan and the left ball joint is way off quality from right ball joint. One ball joint is okay, 555 made in Japan. The other BJ is made from ???. Nothing engraved on the BJ and off quality compared to other BJ made in Japan. Don't be fooled by the pictures on their catalog showing made in Japan. Only one of the 4 parts that I bought is made in Japan. The online store wants me to return it at my own expense which is expensive.

ACDelco, like make manufacturers, does not sell parts directly. Therefore, the only reason a site like ACDelco.com exists is for people to get information about the parts they sell - and that's important. So it is very disappointing that you cannot trust the information there. To take a recent example: I was researching batteries for a 2012 Dodge Durango. The most important two specs of a car battery are Cold Cranking Amps (CCA) and Reserve Capacity (RC). The results for the Durango showed three batteries; all three, even the "High Reserve" model, were shown as having the exact same specs (700 CCA and RC 140). Worse, the stated CCA of the two "Gold" batteries did not agree with the CCA shown in their photos (800 CCA). Finally the CCA specified for the exact same battery (94RAGM) on Amazon and Summit Racing was different again (850 CCA).

So depending on where you look, the CCA for a 94RAGM ACDelco battery is either 700, 800, or 850, and we are also to believe that their "High Reserve" 94RAGMHR battery has the exact same capacity (both spec RC as 140).