I have a 2004 Buick Rainier V8 CXL, Automatic, 182,214 miles.
I was gone for 6 months so it just sat. Not ideal, but that's life.
I replaced the battery, because it was dead. New battery was at 12.73V.
The problem:
1) It's a Buick
2) After I replaced the battery it started like a champ, but after about 5 minutes the car died.
I test drive it and it was all normal for the first 2-3 minutes, then the car died. I restarted it, continuing to drive, and I noticed it would die if I didn't keep my foot on the gas (maintaining RPMs). Once I took my foot off, the RPMs would reach zero, the car would die, and the battery light came on on the dashboard.
I had to repeat this process (about 4-6 times) until I made it home, now the car can sometimes start, and if it does start it dies right away unless I put my foot on the gas.
OBD Scanner (Ancel AD410):
No codes or errors
Battery tested w/multimeter: 12.68V
Any ideas on what to fix?
Thank you.
Our ethanol laced gas can easily get pretty nasty after 6 months, particularly if the car sat outside, the tank wasn't full, and no fuel stabilizer was used.
Given no codes, that's what I'd address first - fill the tank with good fuel, add some Techron to clean your injectors, do your throttle body and MAF. That corrects most of these kinds of problems. If that doesn't address the situation, I'd look at the fuel filters/fuel pump next - they can get clogged by "sat too long" gas.
https://www.youtube.com/watch?v=NWCKvU2FmDc
Change out your fuel filter and check fuel pump pressure.
Hey all once again,
I cleaned the throttle body, MAF sensor, and put in some fuel additive. I also changed the oil.
The car runs almost as good as before the 6 months.
So:
The check engine light just came on.
The oil gauge moves a lot from 40 (middle tick) to 60 especially when I accelerate.
The engine also runs between 450 to 800RPM when I'm not accelerating (seems lower than I remember).
Any ideas? I'm thinking something with the oil change.
Thank you for your help this far! I really appreciate it.
What’s the code/s?
Sorry about that.
Ancel AD410:
P0752- Shift Solenoid 'A' Stuck On
P0495- Fan 1 Overspeed
I went to an AutoZone as well, and I got the same codes:
P0752: Solenoid Valve Performance
P0495: Cooling Fan Speed High