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Why instrument pressure signal measured from 3 psi not from 0psi?
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Where is the fuel shut off switch on a 1995 Chevy Tahoe?
There is not one!!! The fuel pump is controlled by the oil pressure. When the oil pressure goes to 0psi the fuel pump shuts off.
The running pressure of a liquid-cooled engine is controlled by a?
Coolant pressure begins to rise above 0psi as coolant temp increases. The pressure cap on the radiator or elsewhere will contain this rising pressure until it reaches the preset spec. written on the cap. Then a relief valve opens, and coolant is vented to the overflow or the ground to maintain pressure. Usually about 15psi.
Why would a 93 corolla have 190psi compression on three cylinders and 0psi on the forth cylinder?
Many reasons. Did you take the plug out of #4?
Isuzu npr 5.2l diesel no start?
Well the 5.2L is a great engine and sense it's release in late 04 I've experienced little issues with starting problems. When i have they were related to internal supply pump damage, rear timing gear damage, out of fuel, in 08 I've had issues with the oil pressure sensor (ecu reference on passenger side engine block) wiring was not heat shielded correctly from exhaust manifold heat and would melt the wiring causing a short to power on the 5 volt reference which is also tied into the 5 volt reference of the Fuel pressure sensor causing the ecu to think common rail fuel pressure was 0psi and a no start situation, and if 3 or 4 (and sometimes 2) fuel injectors are not firing the engine will not start. As for cold starting aids like the glow plugs or glow plug controller not working is absolutely zero failures of those components my 10 years working on them. So that's basically what causes a no start on that model i'd start at these points. Hope this helps. Good luck.
What is the psi on a 20 lb propane tank?
The pressure inside a propane tank depends on the ambient temperature of the tank and if Liquid Propane Gas (LPG) is present inside the tank. It has nothing to do with the size of the tank. A 20 lb tank that is not more than 80% full, in an 100 degree F environment, with LPG in it, will have approximately 172 PSIG, just as a 200 lb that is not more than 80% full, in an 100 degree F environment, with LPG in it, will have approximately 172 PSIG. Examples are: A tank with LPG (no more than 80% full) at 80 degree F with have 128 PSIG, 60 degree F with have 92 PSIG, 30 degree F with have 51 PSIG, and -20 degree F with have 11 PSIG. This explains the decrease in pressure as you use a large amount of propane from a tank quickly. The tank cools due to the venture effect which drops the temperature of the LPG. The drop in temperature results in a drop in pressure. When the tank warms up, as long as Liquid Propane Gas is still present the pressure will go up. (For a more detailed chart go to http:/www.propanecarbs.com/propane.html )
