Can a GM 454 back fire under load?
I have a 95 Bounder 28 with GM 454. I bought it used and discovered too late that it back fires under load during a hill climb. If I back off it stops but I also end up dropping down to 40-45 mph at times.
Where is the advance spring on a GM 454?
There is a mechanical advance spring set up under the distributor cap. Also, unless the engine system has been updated; there is a vacuum advance unit attached to the metal base under the cap. The top item is to replace ALL the vacuum lines.
What kind of fuel injection does a GM 454 have?
Does his engine have 2 4 barrel carburater or a throttle body Fuel Injection. If a 4 barrel it might be the accelerator pump. I’mpretty sure Tim’s is a throttle body injection like mine. These look like a carb but are far from it.
Is there an ECM on a 1993 GM 454?
There is No true ECM on the 1993 454. There is a mechanical advance spring set up under the distributor cap. Also, unless the engine system has been updated; there is a vacuum advance unit attached to the metal base under the cap. The top item is to replace ALL the vacuum lines.
What kind of engine does a Chevy 454 have?
The original Chevy 454 engine was replaced with a 350. It was all checked out and tuned up by a mechanic friend before they left and has been running great. Yesterday after stopping at a gas station, it wouldn’t start on the first try (just one click, no turn over), but on the second try it started up and ran fine.
What does it mean when your RV won’t start?
The RV won’t start. There are none of the typical dead battery behaviors – no clicking, no lights flickering, nothing. All of my normal dash lights do not come on when I turn the key. Even the radio light is out. When I flip the chassis battery disconnect switch it springs back into the ON position and won’t stay off.
Why is my car engine hard to crank over when hot?
The starter (which is warm anyway from the engine heat) no gets even more heat from the exhaust (usually headers but sometime the “Y” pipe). The hotter the starter the higher the electrical resistance = starter won’t run as fast as it should.