Question about Cars & Trucks
Pop noise I fear was a cooling system hose or radiator blowing out. I would say cylinder head is now bent gasket leaking and combustion into cooling system . a preasure test of each cylinder at TDC firing will verify this and specificly locate the main area of concern. Red lights on dash are the same as street lights red means stop or pay the consequences
Posted on Dec 10, 2012
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Posted on Jan 02, 2017
It could be either hose or the pump. Introduce no more antifreeze to this car until you have found your leak as you are just wasting your money.
You are going to have to visually inspect it for the leak. Typically if it is a pump, the pulley and the underside of the pump will be wet.
Posted on Jan 27, 2010
SOURCE: Blowing ECM-B fuses
The ECM-B fuse is a 20 amp fuse, and you should NEVER put a larger fuse in to try to overcome any problem. The oil pressure switch is a secondary concern; there is an idiot light or oil pressure guage in the dash to alert you to oil pressure problems. Under heavy load, such as towing, your engine requires more fuel, and if your fuel pump is going/has gone bad, it cannot supply the demand.
The problem is almost certainly a fuel pump wire harness short, caused by a dying fuel pump. I have both had this problem myself, and repaired it on three other vehicles. On my vehicle, the wire harness had welded itself together when the fuel pump locked up, and the wire harness caught on fire.
The fuel pump is in the gas tank (of course my tank was full), and the tank has to be dropped to access it. The wire harness is modular, with plugs at both ends, and can be bought from the Chevrolet or GMC dealer.
If you put an incorrectly-rated fuse anywhere in your vehicle's electrical system, the WORST place to do it is where you have--the fuel pump circuit. Fuses blow for a reason, and the manufacturer's engineers properly size the fuses for the application at hand. Please don't do that again.
This can be a very dangerous problem and repair, and no, it is not cheap.
Do not attempt to operate this vehicle until you have had the problem properly corrected. Good luck.
Posted on Feb 14, 2010
Sounds like you have an air;lock in your cooling system.Try placing a bleeder on the return hose to the heater core ........looks like a small tap
Posted on Aug 18, 2010
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