Replaced injectors. Knocking
- Thread starter tommywalton1974
- Start date
well that's probably not whats up with mine then. Mine doesn't smoke at all, even under WOT. Just ticks real bad, and the tick gets louder with more throttle. Suppose it could very well be an exhaust leak, but I don't smell exhaust from under the hood at all.
Crap i didnt see page 2. Thanks guys. No its not exhaust leak i checked. This engine has zero leaks. Its 51 here this morning and when the truck cools off overnight it doesnt do it until the engine warms up. Im 99% sure its not mechanical valve train noise either. The damn engine idles and runs like new yall. I need more options. I cant just run out and buy efi live or a tech 2. Nobody around here has that either. I want to isloate each injector on the drivers side(thats the noisy bank) i want real work exPerience on what coild happen to these injectors once i cap off the fuel to them and stomp it down the road. It can be done with efi live why not with a 10 buck fuel fitting cap? Ive got a warranty on these shitty injectors and i intend to use it.
engine tick
not to hijack thread but had same issue in customers truck valves were way out of spec about .020 when there suppose to be .012 to .010 fixed the problem and difference in performance amazing.
not to hijack thread but had same issue in customers truck valves were way out of spec about .020 when there suppose to be .012 to .010 fixed the problem and difference in performance amazing.
Wow thanks for the amazing reply with the info about what it would do to the injectors if i cap one of them off. No i havent run it without the belt yet, again what is the reasoning for removing the belt? Im just curious. Also yes i had one stuck in the cup. At least 2 had o-rings that were damaged. I cleaned the cups and the heads for hours. They all looked new when i resealed with new o-rings and lock tite. I let them sit for 24hrs before i cranked it. Two injectors had the new o-rings already on them and seemed harder to push in but didnt alarm me.
Ok thanks. If the o-ring is bad will i be getting blow-by? Because i have hardly none. Can you tell me if you think i will damage an injector by cutting off fuel to it?
Is there not a GM dealer in your area? For what you will spend screwing around trying yo cap off fuel from individual injectors you could go there and individually shut them off much faster. It takes little to no time.
I didn't even know oreilly sold injectors. Know anything about them? Like who does their remans? I hope you didn't pay the $280 they have them listed for. You can buy Bosch remans way cheaper from a number of places.
I say go to the dealer, run a balance rate test, shut off individual injectors and go from there. Compression test could show you bad rod or leaking cup.
If it was a bent rod or stuck injector though it would always be making noise. Usually.
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I didn't even know oreilly sold injectors. Know anything about them? Like who does their remans? I hope you didn't pay the $280 they have them listed for. You can buy Bosch remans way cheaper from a number of places.
I say go to the dealer, run a balance rate test, shut off individual injectors and go from there. Compression test could show you bad rod or leaking cup.
If it was a bent rod or stuck injector though it would always be making noise. Usually.
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these are balance rates from a genesis scan tool. I don't really know what I'm looking at so any information will be appreciated. also yes orielys sells them reman by borg warner. the Only reason I put them in is because my boss charged them there. i suggested against it. now we are both paying the price.
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also the nearest dealer that MIGHT be worth a shit is 75 miles and i just can't afford to go there. get paid by my boss to do the work. it doesn't matter to me how long it takes to cap off 1 injector at a time. i don't have time to leave my truck for days or even weeks with the idiots around here. i asked could i make an appointment to have my truck scanned and the lady was so freaking rude about it. No she said, i can make an appointment and bring it in and leave it. what the **** is the point in an appointment for next week. not even an option.
Injector rates seem fine to me. It is pretty time consuming, but you might take the valve covers back off and check everything over, make sure everythings tight andcheck your injector cups.
I checked yesterday fluids. No oil in water or vice versa no fuel in oil. No contaminated fluids anywhere. Also the thing is perfectly drivable. I just hate the sound. So yall are saying those balance rates are good?
Tommy can you make a video and post it on here so we can hear it and maybe offer some other ideas?How much did you mill off the head? check you boost tube clamps i had a bad clamp or a bad boot and it was making an annoying sounds only under throttle i bought a mbrp boost tube for the hot side and the noise was gone.I was told my clamps where bad and needed to be changed,looked fine to me but may have had something to do with it
Hey guys i made a fuel rail block off fitting out of an old injector line. I started with number one and it immediately quit making noise when i road tested it. Im putting it back together now with another injector and hope thats it. If this injector is good and no rod bearing wrist pin issues it should be quiet. The block off trick worked like a charm. The miss from one dead cylinder is negligible.