MARK3 ,sometimes hard to start, idle rpm not stable.

cre · 02-16-2010, 01:49 AM

Your engine temps should drop too.

chinesedawn · 02-16-2010, 02:06 AM

Yes Boss！ My engine tem. drop to normal. But actually the main reason cause my Engine Tem. go high is I lose too much coolant when I change the radiator

....

Finally my car runs great.......But the heater start to bother me

....It goes warm and cold with engine load, when I driving it, the heater proforms really good but when I let my car at idle my heater won't take care of me anymore......

cre · 02-16-2010, 02:15 AM

There's a valve in the heater line on the passenger side. It's mounted on the firewall by the charcoal canister. Follow the heater hose from the firewall to it. There's a VSv with a metal bell with a lever that runs to the valve. Run the vacuum line which runs along the firewall to the VSV straight to the bell and see if the lever moves up. It's a common failure point. I'll see if I can find a diagram.

Here you go:

02-16-2010, 01:49 AM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Your engine temps should drop too. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-16-2010, 02:15 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	There's a valve in the heater line on the passenger side. It's mounted on the firewall by the charcoal canister. Follow the heater hose from the firewall to it. There's a VSv with a metal bell with a lever that runs to the valve. Run the vacuum line which runs along the firewall to the VSV straight to the bell and see if the lever moves up. It's a common failure point. I'll see if I can find a diagram. Here you go: __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 02-16-2010 at 02:18 AM.

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02-16-2010, 02:06 AM	#2
chinesedawn Intake Join Date: Feb 2010 Location: laramie wy Posts: 35	Yes Boss！ My engine tem. drop to normal. But actually the main reason cause my Engine Tem. go high is I lose too much coolant when I change the radiator .... Finally my car runs great.......But the heater start to bother me ....It goes warm and cold with engine load, when I driving it, the heater proforms really good but when I let my car at idle my heater won't take care of me anymore......