Was up guys have a problem here last night went out for a cruise and on the way back home the car started acting weird I was on third gear and the rpms wouldn't go pass 5rpms then 4th gear did go pass 5 but car speed did not increase maybe a lil but not as normal as it should be now there's knocking coming out of somewhere under the hood when I press on the gas the knocking gets louder and the oil light came on and off then it never came back on any ideas let ne thanks guys

 

Check all the sensors properly...check oil..check everything sounds serious.

 

sounds like a rod bearing, prob wanna drain your oil and check for metal flakes. can also drop oil pan. not gonna be pretty. my guess is its time to rebuild

 

Yea ima check that out I need to get to a lift be easier what do u recommed for the rebuild

 

spun bearing

 

turn the motor over without the spark plugs in. If the knock goes away then you have a bad rod bearing.

 

The more you drive it now, the more it will cost to fix...

Drain the oil, pull the pan and find out whether your crank is salvageable...

 

Alright sorry guys but if u mind how do u turn around a motor can someone help me out here never heard of this before sorry

 

You can turn the motor over with the starter, which is what I think the previous poster is suggesting. If you do so with the spark plugs removed, there is no compression and the motor will spin faster than normal. HOWEVER, if you are going to do this, make sure you pull the fuse for the injectors, or you will have a major under hood mess to clean up and probably crap in your eyes, too.

The real question is whether you can reproduce the conditions that cause rod knock at RPMs and no load conditions that you can get just using the starter with no compression.... I'd not depend on this test for that reason...

If you really want to know if you have rod bearing problems, first drain the oil and look for metal particles. Next, if you find metal particles, pull the oil pan and see what you find. Pull a rod bearing cap and take a look at the bearings themselves. That's the only way you will know for sure...