P261B just came up but still drives

The new pump doesnt say made in japan u see they scratch it off? I already found the best seller on ebay 99.9% rating and got about 80k reviews. The part look brand new. I think it should be fine

 

Maybe bad news ..heavy white smoke initially after new pump. Turn heat n fan to max ...after 15min, not too heavy byt still low to medium white smoke...head gasket?

 

It was thick but now it thin out ..maybe it just need to burn off those coolant....ya? Wishful thinking?

 

i just came back after driving it for about 4.5 hours non-stop. I didn't notice white smoke from rear view mirror or at least not thick enough for me to see it. Good signs I hope. 2nd, no water pump lights came up. 3rd, no mis-fire light came up. However, it does rattle a lil bit every stop-&-go moment for just a few seconds. I drive locally only tonight and average speed is 22mph. I notice 1 more thing and after talking with my other friend who drives the same car. It could just be the aux battery going low. This may also be the cause it burn the water pump too. Its a old car and very high miles 250k. All the electrical need more energy than new car. It was my fault, I let the battery last too long maybe still not 100% sure if that was the cause yet. Base on Torque pro battery check, its still 14.1v during driving. But I still think it maybe the battery, 6 years and 7 months old battery. I got it Jan. 16th 2014 to today. I think I may go try a new battery on and see.

the coolant lose maybe to leak. I lost a lot of coolant when I took the old water pump out. I of course filled it back up to full but the level drop a lil bit after driving maybe just the coolant going into the system. I will top it off tomorrow.

 

ok just checked, it did lose some coolant. I also loosen the cap to let air out to release pressure. I will add some water mix to it tomorrow and keep monitoring

 

no boiling sound at all. No bubbles in coolant tank.

 

Ya i got concentrate toyota long life red/pink coolant. Ill need to mix it 50/50 with distill water.

 

just checked the aux battery after 18 hours non-driving. Its 15.7V so I guess its not the aux battery's issue? So I got a land rover that has similar problem engine knocked and completely stalled while driving 2 years ago. I checked the aux battery n its no problem too. I still replaced that battery for it, it hasn't knock or stall problem ever since. Should I still get a new battery tomorrow when toyota part store open?