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What do you do if your car is in the shop and you are tired of the subject du jour at work?
Work on a different car!! I decided to replace the battery in the Prius because I can't find a Cayenne GTS with a manual transmission to replace the 996 while it's gone. This battery will get this car back to 53 mpg from 42mpg. Woohoo. 1st battery lasted 18 years, 220K miles. High expectations exist for this one.
Oh, and apologies for the non-Porsche photo. It'll never happen again.
I expected the battery bank to be much larger than that. Are there more than one or is that it? How much did that thing weigh? I'm a bit Prius-curious.
It was $1650 with some dealer promotion. Toyota in our area has just started some type of online thing. Other dealers were $1950. The core charge was $1350.
I was able to muscle it around pretty easily. I didn't weigh it, but maybe it was 60lbs. The box it came in had 5X the volume of the battery and barely fit in the car. Why the giant double containment double strapped box? Before this box, apparently there was a leak in a battery on an airplane that led to a fire. The core return required they open the box, take the top off the battery and check to see that the plastic side rail insulators were intact, as well as all the cables having insulated ends. They were quite serious about it.
Some data:
-when new, running at 70mph would yield 48mpg
-at 220k miles, running at 70mph would yield 40mpg
-new battery, running at 70mph yielded 49mph this morning
-the battery had kind of an optimum life. Long running times between 35-50mph. Temps are not extreme here. When I was driving it 70 miles a day for commute, my drive never touched the freeway. Averaged 53mpg for 12 years. Then job change dropped the commute hours.
I'm happy with the improvement. If I were concerned about the cost, it would take 8 years to pay for itself.
The funny thing is that I don't try to get good mileage with my 996. I just drive it. I simply compare it to previous to make sure something weird hasn't changed in fuel delivery.
A few weeks ago I swapped out the engine lid with the fixed wing with the lid that has the retractable spoiler.
I wanted to see if the spoiler was working as it's supposed to and since you can't see it in the rear veiw mirror, I took a vid.
Spoiler Alert, (see what I did there? ) it's working correctly.
It was $1650 with some dealer promotion. Toyota in our area has just started some type of online thing. Other dealers were $1950. The core charge was $1350.
I was able to muscle it around pretty easily. I didn't weigh it, but maybe it was 60lbs. The box it came in had 5X the volume of the battery and barely fit in the car. Why the giant double containment double strapped box? Before this box, apparently there was a leak in a battery on an airplane that led to a fire. The core return required they open the box, take the top off the battery and check to see that the plastic side rail insulators were intact, as well as all the cables having insulated ends. They were quite serious about it.
Some data:
-when new, running at 70mph would yield 48mpg
-at 220k miles, running at 70mph would yield 40mpg
-new battery, running at 70mph yielded 49mph this morning
-the battery had kind of an optimum life. Long running times between 35-50mph. Temps are not extreme here. When I was driving it 70 miles a day for commute, my drive never touched the freeway. Averaged 53mpg for 12 years. Then job change dropped the commute hours.
I'm happy with the improvement. If I were concerned about the cost, it would take 8 years to pay for itself.
The funny thing is that I don't try to get good mileage with my 996. I just drive it. I simply compare it to previous to make sure something weird hasn't changed in fuel delivery.
I've been averaging 17 mpg (US) in my 2001 996 C2 with Tiptronic - mostly highway since last summer. Just curious, what is your typical mpg in the 996?
can you report back when this is done i want to see how the work comes out i want to send my steering out to get done as well i have wood on my wheel too 4 spoke. btw how expensive was it?
You should inspect\replace rear brake shoes and rotors if your e-brake lever is that high when in use. It should only be 2-4 clicks to engage. I recently posted a DIY on here for reference.
I've been averaging 17 mpg (US) in my 2001 996 C2 with Tiptronic - mostly highway since last summer. Just curious, what is your typical mpg in the 996?
I'm between 19 and 21mpg, manual trans. Prolly 1/3 freeway, 1/3 city, 1/3 hilly(not sure where that fits). If after filling I immediately drive it on the freeway for 20-30 miles, it ends up around 24. I was quite surprised. Also, I'm running 94 octane. Seemingly rare in California
I'm between 19 and 21mpg, manual trans. Prolly 1/3 freeway, 1/3 city, 1/3 hilly(not sure where that fits). If after filling I immediately drive it on the freeway for 20-30 miles, it ends up around 24. I was quite surprised. Also, I'm running 94 octane. Seemingly rare in California
Ok, well that confirms my nose that the car is running rich and I need to get the injectors done. I also have no record of the fuel filter ever being changed (on a 2001 it is located outside the fuel tank) so I will get that done at the same time.
Ok, well that confirms my nose that the car is running rich and I need to get the injectors done. I also have no record of the fuel filter ever being changed (on a 2001 it is located outside the fuel tank) so I will get that done at the same time.
Thanks!
Smarter guys than me will chime in here, but when the mileage takes a nosedive on almost any vehicle equipped with 02 sensors, it's most likely a bad sensor. They are easier to change than the injectors, and can be checked with the right scan tool.
FWIW, Greg.
Smarter guys than me will chime in here, but when the mileage takes a nosedive on almost any vehicle equipped with 02 sensors, it's most likely a bad sensor. They are easier to change than the injectors, and can be checked with the right scan tool.
FWIW, Greg.
Thanks - I will follow up on that with my durametric. Just need the roads to be dry enough to run it for an hour on the highway to get up to temp.
I replaced all 4 O2 sensors with Bosch units when I changed the exhaust about two years ago, but anything is possible.
Thanks - I will follow up on that with my durametric. Just need the roads to be dry enough to run it for an hour on the highway to get up to temp.
I replaced all 4 O2 sensors with Bosch units when I changed the exhaust about two years ago, but anything is possible.
Thanks!
u need to pay attention to the short and long term fuel when u run the durametric. There is a good youtube on explaining the numbers. U need to look for vacuum leaks too.
02-13-2021, 04:12 PM
) it's working correctly.
