Question about Cadillac DeVille
Fuel pressure regulator . plugged fuel return line .
With the ignition switch ON and the fuel pump running, the fuel pressure indicated by the fuel pressure gage should be 333-376 kPa (48-55 psi).
The Fuel Pressure Check determines if the fuel system is providing fuel pressure. The components involved include the fuel tank, sending unit, pump, pipes and hoses, pressure regulator, fuel rail, and injectors. Also checked is the electrical operation of the fuel pump relay. This chart requires J 34730-1A , Fuel Pressure Gauge J 37287 , Inlet and Return Fuel Line Shut-off Adapters.
Posted on Feb 18, 2017
There is a flat spot at the front of the right side (passenger side) cylinder head will have the last 6 of the Vin and letter code at the end of it for id purposes. You will see it looking down from the top of the motor.
Posted on Jul 06, 2008
When you say thermagasket kit,I assume you mean one of those silly DIY gasket sealant liquids that you put in the engine.
You should not use these type of products on ANY engine let alone the Northstar.
To cure a headgasket leak, replace the headgasket.....there is no miracle cure.
On the Northstar, you will damage the cooling system,plus you will continue to have issues as time goes on.
How do you know you have a blown head gasket?
Here is something to consider.......
The most common overheating problem with the Northstar engine is a blocked purge line(small hose).The purge line is designed to purge air out of the cooling system.
There is a small diameter hose coming from near the top of the coolant tank (not the cap) ,this is the purge line.
With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.
If the hose is clear, check for blockage at the nipple on the tank.Or trace the hose back until you find the blockage.
The hose goes in to the engine to a crossover and comes out the other side close to the thermostat housing,the blockage may be there.
Posted on Jun 02, 2010
SOURCE: How do you change the
put it up on jackstands ,be very carefull .take transmission pan bolts loose and drain fluid into a bucket or pan.once the fluid is drained remove bolts from pan change filter and gasket.
Posted on Oct 19, 2010
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