Ticking noise i have a ticking noise in my engine, when its in park and i mash on the gas it goes away, but when i drive it, it get loud when i mash on the gas. what might be the problem?

Hey Tim , whether an engine "knocks" or "ticks" is a BIG difference!! Valves usually tick. Rods and bearings knock,,, I would consult a qualified professional and get their opinion..make sure you have PLENTY of oil...

The TPS would be what I would do had that problem once myself solved the problem. as for the ticking noise sounds like a lifter is bleeding down as long as the noise goes away you will be ok. But may I suggest that if you are going to keep the vehicle for awhile longer you might want to have a set of lifters put in it.

The ticking noise could be a faulty hydrulic valve lifter. When last was the oil & filter changed, it coul be that the oil is thick and not going through to the lifters and when it warms up the oil is thin. It could be that the engine is need of an overhaul as 148.000 miles is 238.182 Kilometers and that is a hi milage.

Possibly timing chain tensioner.

This sounds on the base of it to be pre ignition, if so the moment you take the foot off the gas it goes? The cure is to retard the ignition timing slightly, have you recently changed your octane of fuel? this will also cause this?
The noise is caused by the expansion of the compressed gases expanding before the piston reaches top dead centre causing the piston to \'rattle\' left unchecked will cause permanent damage and engine failure

I had what sounds like the exact same problem. It was an exhaust leak from the left (driver's) side exhaust manifold. This engine has a history of the manifold bolts breaking and causing the exhaust leak. The engine is also used on some Dodge vehicles. It sounds like a tick and I almost mistook it for a bad lifter. I took it to the local Jeep dealer who confirmed the exhaust leak. I replaced the left manifold completely and replaced bolts/gaskets on both sides (left/right) and it fixed the problem. Be careful, as the dealer tried to gouge me on the price. You are looking in the ball park of $600 parts/labor. I got parts for $120 and it took the better part of a work day to do the job.

Possibly a leaking hydraulic lifter. They can leak down while engine isn't running and then make a ticking noise for a while on startup. If it takes 10-15 minutes to go away, it is more likely to be a loose tappet which needs adjusting.

The sound you are hearing is an exhaust leak. Sounds like a ticking noise, goes away when driving, but can be heard when sitting. You probably have a bad manifold gasket, or loose clamp or broken weld on exhaust. Best way to tell is start it up and listen as to find leak. Or take to a muffler shop and have them repair it.

how is the oil level and pressure?, how many miles on engine? is this a loud knock or rather a clatter/ticking noise? knock is engine rod or crankshaft bearings, clatter loud ticking is valve follower noise. how long before it (the noise) goes away?

difficult one this without haveing a drive in car to hear the noise,this sort of sound could be caused by the flex plate on the crank/torque converter,break on edge of fan belt,power steering pump,altenator bearing,evan the transmission possibly a pump,or could it sound more a sort of electro mechanical noise ?? without hearing it its very difficult to diagnose .