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My dear friend, you have experienced an engine "throwing a rod". That is to say, a piston rod broke within the engine block, thus the loud knock, The engine will not start with a jump because it cannot turn because of the broken rod. The reason it starts with a tow or a push is because the engine is "forced to turn" when the transmission is engaged and the clutch is released. The loud noise will be there and mpre damage will be caused by trying to turn the engine without repairing it - damage as severe as a broken block, scored crankshaft, etc.
What else can I help you with?
1997 Chevy lumina 3.1 and it makes knocking noise coming from the engine when I start it It goes away after about 2 minutes what could this be?
The condition may possibly be piston slap.
Why does the air conditioner in RV start making a knocking noise?
your face a bru
What would cause your 1989 buick park avenue to knock?
== == I do believe if you hear a knocking noise that your crank shaft could be failing. Which means you will need a new engine. Have it checked out. Replace the harmonic balancer they will make a bad knocking noise. When you start it and the oil light goes out and it knocks, this is what is wrong with it.
Why a knocking noise on cold start up on a 2005 forenza?
you proably have a heavy lifter which when u first start it let it worm up so the oil starts flowing if u don't u could bend a valve
When starting my engine I hear a knocking noise and when I start driving it kinda fades I own a 2001 Chevy Malibu?
if its a low knocking noise it is normal on the 3.1 engine!! if it is loud check to make sure the valves are getting oil!! I have a 2000 Malibu v6 and it is the same way.
What is the problem with my 89 240sx if every once in a while when I start it an extremely loud knocking noise is present but goes away after a couple of miles?
Sounds to me like piston slap. After a while, the piston rings wear enough material away from the cylinder walls that there can be a larger gap than specification. In colder weather this gap increases even further, and when you first start your engine, the torque applied to the pistons by the rods and crank make them pivot. The lower part of the pistons hit against the cylinder wall, and you hear something like a knocking noise coming from your motor. As the motor warms up, your pistons and cylinder walls expand, thus filling the gap that was once there (and you no longer hear that knocking noise).
What is Knocking noise on start up worse at norm temp new engine mountings helped looking at gearbox mountings sounds like exhaust hitting but isnt also sounds like coming from bell-housing y61 patrol?
you have a cracked flywheel/flexplate
What could cause a subtle knocking noise in the engine when it's cold and only when accelerating and gets quicker the faster you accelerate?
I would say you either have a rod knocking or lifter knocking. I know in the 3.8 litre motors they are known to knock alittle when you cold start them. Most Grand Ams, Grand Prixs are like this. My sister has a 2002 Grand Am that does this and the noise goes away once it's warmed up. I would also double check and make sure your oil is full. get your car to a garage for a def solution.
WHY IS MY Suburban MAKING engine noise at start up?
There could be numerous reasons why a Suburban is making engine noise at start up. It could be anything from a blown gasket to a spark plug. A mechanic will be able to find out the cause of the noise.
What is the clattering noise coming from under the valve cover on the start up of 1995 caravan 3.0?
The lifters are failing and need replaced to stop the noise.
2000 Honda accord when you went to start it this morning it makes a clicking noise coming from the hood the lights flicker and eventually come on but the car dont start and that clicking noise is the?
stater or silanoid
What is causing engine knocking noise on supercharged Hummer H2 after running a little while?
The Hummer H2 is a 2005 SUT with the 6.0L Vortec and a Magna Charger supercharger. It runs great with plenty of power, but I'm concerned about some noise I'm getting out of it. When I first start it up, everything sounds fine. After running a mile or so, I start to get a knocking sound. I only notice the sound when idling, not when running.
