The truck will heat up, and the heaters will start blowing hot heat, but then sometimes it will heat up and blow hot for a while, adn then just start blowing really cold air,and usually takes a while to start blowing hot air again, if at all that day. Also wether it is warmed up or not it will sometimes idle up to 2500 Rpm and then drop to 1000 Rpm, and then it will do that over and over, and it'll stop for a short bit and idle at 1000Rpm, and then it'll gradually go back up to 2500 Rpm and then start dropping and rising and dropping again. Also the Valve Cover Has Vacuum when its running, when i pull the oil cap off it, oil spits out and you can see pressure coming out, and it will start to idle rough.these problem could be all connected for all i kno It is a 1992 Toyota Pickup with the 22Re motor in it with about 180,000 Miles on it, it sat for about 2 years and then i purchased it, and put a new clutch in it, and it ran fine for about a year and now all these problems,
For car running hot and overheating issues, I suggest to you go through this help links.
Click this link below and go through the troubleshooting procedure to take care of the problems: ----
Car runs hot?
http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------
All types of car overheating problems and troubleshooting?
http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
---------
Car freeze overnight and started overheating while driving?
http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html
-----------
Engine Overheats and heater blowing cold?
http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------------------------
Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------
overheating?
http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------
Car engine Overheats and transmission starts slipping?
http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.
To troubleshoot this types of problem,click the link below
:----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the
issue.
------
Engine Overheats and heater
blowing cold?
http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------
Heat blows cold on drivers
side and hot on passenger side?
http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html
-----------
For car running hot and overheating issues, I suggest to you go
through this help links. Click this link below and go through the
troubleshooting procedure to take care of the problems: ----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and
troubleshooting?
http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?
http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------------------------
Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.
For car running hot and overheating issues,i suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems :----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?
http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?
http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
---------------------------
Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.
435 views
Usually answered in minutes!
so it seemed like something was plugging the heater core, but it turns out all 3 problems were caused by a New thermostat that was also bad, it wasn't opening at all, so nothing was flowing through the system.
×