Question about 1990 Nissan Pathfinder
What sensor opens the throttle butterfly on the intake manifold. it is controlled by a vacume diaphram which is given vacume from a vacume block on the drivers side behind the battery i need to know what controls the solinoid inside the vacume block thank you most frustrated
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Posted on Jan 02, 2017
Did you hear the one about the Terrano with a charging problem?
Just fix it by replacing the thermostat!
Seriously - check your temperature gauge does it take ages for the needle to barely get off cold? (and is the heater useless?)
The needle should get to just below half way in 2 or 3 minutes.
If the thermostat is stuck open, then the engine does not get up to temperature.
The glow plug control senses the engine temperature is cold, so the glow plugs stay on for an extended period of time (sometimes 10 to 15 minutes) - short trips particularly in winter, with more headlight driving - the alternator can't keep up with the current being drawn off and from time to time you will end up with a flat battery!
A thermostat is cheap, and easy to replace (three bolts and about a half litre of coolant - I pumped the coolant from the top of the radiator, and didn't spill a drop when the thermostat housing was removed).
Sure enough, as the engine temperature reached about 50C, the glow plugs turned off.
Posted on Jul 21, 2009
check for vaccum from throttle body to egr solenoid,if you dont have vaccum your vaccum port is stopped up in the throttle body,then check for vaccum from solenoid to egr valve.
Posted on Feb 02, 2011
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