rjparker's Recent Activity
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rjparker replied to the thread 2012 with 279k miles overheating.
Stop and spit ball this issue: No flow through reservoir or heater. As you are a mechanic you know the reservoir is not an overflow...
Jul 19, 2026 at 6:04 PM -
rjparker replied to the thread 2012 with 279k miles overheating.
A bad reservoir cap needs replacement. However it won't cause 248f warning light overheating by itself. It won't cause no flow into the...
Jul 19, 2026 at 4:40 PM -
rjparker replied to the thread 2012 with 279k miles overheating.
225f is hot for the first temp sensor but you are not monitoring the second temp sensor described above. Its the one that coded. Are...
Jul 19, 2026 at 3:45 PM -
rjparker attached a file to the thread 2012 with 279k miles overheating.
New parts fail especially if they were aftermarket. Many have reported short lives of aftermarket water pumps. No heat means no flow...
Jul 19, 2026 at 1:57 PM
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rjparker replied to the thread serious motor shake.
Carefully clean injectors. They are rarely a problem in a port injected engine and they are oem.
Jul 19, 2026 at 12:24 PM -
rjparker attached a file to the thread Coolant temperature sensor blues.
You can buy a connector removal tool or a set that holds the clip down while you wiggle it off. [ATTACH]
Jul 19, 2026 at 12:10 PM
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rjparker attached a file to the thread Coolant temperature sensor blues.
There are two, your pic is downstream of the exhaust heat recirc system[ATTACH] This one is at the large engine to radiator hose [ATTACH]
Jul 19, 2026 at 11:58 AM
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rjparker replied to the thread Lever Edge electrical switches & outlets.
What color?
Jul 18, 2026 at 4:00 PM -
rjparker attached a file to the thread 2012 with 279k miles overheating.
B1503 Exhaust Heat Recirclation System overheating after sealant: This is pointing to a) no flow through the heater (there is no valve...
Jul 18, 2026 at 11:07 AM
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rjparker replied to the thread this website has gone ballistic..
He needs to run it on the Amazon servers
Jul 17, 2026 at 3:44 PM -
rjparker replied to the thread serious motor shake.
If it was right to start with or you have not removed it yet it may require many more turns. If it has been removed but now won't ever...
Jul 17, 2026 at 12:12 PM -
rjparker replied to the thread 2019 Prius Slow Coolant Leak.
In post 1 the op reports the exhaust heat exchanger was replaced recently after a bypass proved it was the source of coolant loss two...
Jul 16, 2026 at 12:31 PM -
rjparker replied to the thread 2019 Prius Slow Coolant Leak.
You can't keep losing coolant every day or you will be stranded a hundred miles from home. Assuming the engine overheated prior to the...
Jul 16, 2026 at 12:24 AM -
rjparker attached a file to the thread Prius V not running right after head gasket replacement.
Page 2 of attached pdf suggests mechanical timing or ecm. Given the circumstances it points to mechanical timing. If the parts cannon...
Jul 15, 2026 at 8:49 PM -
rjparker replied to the thread How many gallons of gas does Prius v hold?.
As noted above, fill to the brim will cause some to go into the Evap system.
Jul 15, 2026 at 8:32 PM
