Wednesday, November 24, 2010

Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?

1997 Grand Am, 3.1L, V6, approx 181,000 miles



Ok...I have had several people tell me several different things and I am not sure what to get fixed. I have a loud ticking noise when I start up the car and I have to let it warm up for about 10-15 mins in order for the ticking noise to be quieter and if I don't let it warm up and take off it wont get up to speed and feels like its pulling and once it warms up I can still here the ticking but its faint and as far as the performance its runs good once its warmed up.

I have been told that its the oil pump and if I change it then its best to change the timing belt with it. Along with that I was told that its rare that the oil pumps go bad and then I heard that on 3100, 3800, V6's, it is not rare and that they do go bad.



I have been told that it was the lifters as well.



I have no idea what the heck is going on and I don't want to get ripped off. Please help, any advice is good advice!



THANKS!!!Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
Before you do anything else, put some engine flush in it and then change the oil.



If the trouble was the oil pump, the noise would stay the same or get worse when it warms up, and the oil light would at least be flickering.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
if your going to replace the lifters you might as well replace the camshaft.and while your at it replace the oil pump.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
i would have to say it,s the lifters not pumping up right away. the only way to stop that is change the lifters. that,s what happen when a person don,t keep their oil changed. i have a 1988 oldsmobile and they don,t make any noise. it has a 3800 engine.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
They could be right; but it's that the lifters are making noise, and since they are probably hydraulic lifters, they are making noise because they aren't getting enough oil. Lifters are mechanically rather simple, and if many of them are making noise it's more likely that they aren't getting oil than that they are collapsed. The next logical thing would be to think that it's the oil pump's fault, but it could just as easily be a blocked passage. An oil pump (positive displacement type) is just two dumb old gears fully submerged in oil; it has the easiest job in the engine. If the internal surfaces of the pump are scored, then oil will leak back past the gears and you will lose pressure. The loss of pressure is most noticeable in the valve train since it is the farthest from the pump (don't cite me on that). But like I said, it could just as easily be a blocked passage. An old mechanic's trick is to replace a quart of engine oil with ATF to kinda %26quot;purge%26quot; the passageways and clean them a little bit. But what you really ought to do is find the oil pressure sensor (your car has one whether it has an oil pressure gauge or not), unscrew it, and hook up a pressure gauge to that outlet port. Then check to see if the oil pressure is within spec. You don't wanna dig around in an engine replacing things on a whim.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
the lifters (also known as the tappets) are the rods that open up the valves to allow intake of air and exhaust the leftovers of the combustion process. it is rare (but not impossible) for these to be replaced. rather than replaced they are usually just adjusted. if your timing is off or your tappets are out of adjustment then your car cannot draw in as much air as it should or let out the waste as it was designed. both of these will inhibit your cars power. if the oil pump had gone out then the engine would usually overheat and seize. the engine would simply not run for very long. if i remember correctly the timing belt on a 1997 Grand Am was on the outside of the engine so you should be able to look and see if it has any cracks, breaks, or wear. if it is not broken, or breaking, don't fix it. as with all mechanics ask them to show you the part they say needs to be replaced. ask them why they think it needs to be replaced. never hesitate to ask questions. it is your car and you deserve to know what's going on. good luck :-)Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
%26lt;---3.8L good engines (Series II) 108,000miles



It has a timing chain, not a belt. (no replacement needed)

It could be air in the lifters.

If someone changed the oil without prefilling the oil filter air will circulate though the engine and cause the lifters to collapse while in use.



It could also be low oil pressure not pumping the lifters up enough.

Have the oil pressure tested.

Is there a gauge on the dash????



Is your engine oil level low?

When was the last time you had an oil change?

How long has it been doing this?



Before you spend a bunch of money on something you don't need,

have your oil changed to 10-W40 conventional oil.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
first check the oil pressure gauge it should be around 30's or 40's psi if a lil higher that's ok but if it's lower like just over 0 of half in the red then it's a worn out oil pump an will need to be replaced it's possible that the oil pump could be worn an it's not pumping enough oil to lubricate the lifters. an if the oil pressure is ok you might have to get the valves adjusted it could have a worn or slightly bent rod.if you have to replace oil pump expect high prices cause it's a big job but the valve adjustment it shouldn't be to high.Oil Pump or Lifters??? Which one is it and approx how much will it cost to fix?
If it was the oil pump, chances are the engine would be seized by now. It is likely the lifters are collapsed. The the question becomes why? Any oil pump can go bad no matter what vehicle it is in. Start by using a engine flush. Then change the oil and filter and put in a engine conditioner designed to stop lifter noise.