bent push rods cause p0300
04-12-2006, 08:35 PM
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bent push rods cause p0300 99 ss a4 3800stall
can a bent pushrod cause a random engine missfire???? i changed the plugs and wires and 02s kuz p0151 kame on to so the 02s are new,, i have that tik noise so mabey some chrome moly pushrods???? how hard is it to change em?? thnaks
can a bent pushrod cause a random engine missfire???? i changed the plugs and wires and 02s kuz p0151 kame on to so the 02s are new,, i have that tik noise so mabey some chrome moly pushrods???? how hard is it to change em?? thnaks
04-12-2006, 09:55 PM
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First off, I really doubt you would see a random missfire code with a slightly bent push rod. However I have not had the stock ECU in my car for some time now, so I'm not really used to seeing any error codes.
As for changing/checking the pushrods, thats easy.
Hardest part is getting your valve cover off, after that you will need a 8mm socket and just a few minutes of time, take each lifter off one at a time, pull the push rod and check if its bent (rolling on glass surface works the best)
If you do have bent push rods, you should replace them with some TR hardened rods, they are cheap and work good.
As for changing/checking the pushrods, thats easy.
Hardest part is getting your valve cover off, after that you will need a 8mm socket and just a few minutes of time, take each lifter off one at a time, pull the push rod and check if its bent (rolling on glass surface works the best)
If you do have bent push rods, you should replace them with some TR hardened rods, they are cheap and work good.
04-12-2006, 11:48 PM
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i removed my valve covers the other day to paint them i didnt see the pushrods or am i stupid and i am missing something????
04-13-2006, 12:54 AM
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well if it isnt the push rods... wut do you think it is,, i was pulling my kar into the garage today got a heavy idle like a huge cam and it didnt die but was like cammin hard,,, all my wires and plugs are perfect i chekd em today and all my fuel injectors,, mabey go back to ac delco plugs huh,,,,,,, im going to change the push rods anyway i kan paint my covers red then
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04-13-2006, 03:22 AM
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Originally Posted by CASHss99
99 ss a4 3800stall
can a bent pushrod cause a random engine missfire???? i changed the plugs and wires and 02s kuz p0151 kame on to so the 02s are new,, i have that tik noise so mabey some chrome moly pushrods???? how hard is it to change em?? thnaks
can a bent pushrod cause a random engine missfire???? i changed the plugs and wires and 02s kuz p0151 kame on to so the 02s are new,, i have that tik noise so mabey some chrome moly pushrods???? how hard is it to change em?? thnaks
Did you squeeze any nitrous into the motor yet? It could be a compression lost in one of your cylinders, you might wanna check pressure.
04-14-2006, 10:10 PM
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If you remove your rocker covers to paint them and couldn't find your pushrods you might want to stick to painting things and leave the wrench turning to someone else. If those rocker bolts have never been removed before you want to use a 3/8 drive breaker bar and a 6 point 8mm socket on a short extension to break the locktite. Give the breaker bar a hard quick snap to fracture the locktite while holding the tool straight and square over the fasteners. The rocker bolts are only 22 ft/lb, but it feels like it takes over a hundred to break the locktite loose. Once the locktite is cracked you should just about be able to unscrew the rocker bolts with your fingers.
04-14-2006, 11:00 PM
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If you remove your rocker covers to paint them and couldn't find your pushrods you might want to stick to painting things and leave the wrench turning to someone else.
04-14-2006, 11:16 PM
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some people just arn't mechanically minded. i have friend whos finishing his MECHANICAL (lol) engineering major at Texas A&M a year and a half early, but last weekend at the track he needed help changing his tires. it just doesn't make much sense to me that someone can be that booksmart but doesn't seem to realize that if the vavle on the jack isn't shut that the car wont go up. lol....
