I need help asap!!!!!
09-15-2015, 09:34 AM
#22
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Sounds like the cat has come apart on the inside. Disconnect the cat and see if that solves the problem. If the cat has come apart, that will cause a restriction in the exhaust which will have a huge effect on perfofmance. Remember, an engine is just an air pump. More air in more air out increases performance the other way around decreases performance. A stopped up exhaust will definitely cause performance issues.
09-15-2015, 09:42 AM
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09-15-2015, 10:01 AM
#24
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it still sounds like the exhaust, even if new. while it's cool, go under and pound on the cat and muffler and see if you hear anything rattling inside. could even be a rag forgotten in the exhaust. i've seen that many times. next step, pull the valve cover and make sure #1 is firing on the compression stroke, not the exhaust stroke. it can still run, but not well, and lots of burning into the exhaust, possibly cooking the cat out. double check correct firing order, too.
To me, this points to either clogged fuel or clogged exhaust that happened during his drive.
09-15-2015, 11:14 AM
#25
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So with the exhaust all the way off I've already seen a difference with the power but it still lags just not as often. Do mufflers go bad?? I'm doing the fuel lines now .
09-15-2015, 01:19 PM
#26
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It is progress getting power back though it stinks about the continued lagging after pulling the exhaust. Is the lagging a misfire by chance? Mufflers and cats do go bad. Didn't you say that it has a new cat and muffler? Running rich will kill a cat over time.
Other more knowledgable people may have a more elegant diagnostic test for the fuel system that works on these trucks. Hopefully they will chime in. One thing to do is test the fuel pressure. I don't know how hard it is to put a fuel pressure gauge on downstream of the fuel filter on a 22re but that may be a simple way to diagnosis fuel delivery system from the filter to the tank. You can jumper the fuel pump to test without starting.
The lagging (or misfire?) and power loss could be two separate things. The loss of power was fixed by removing the cat and the lagging is something else. If it is a misfire, there is a list of things to try.
The lagging, is it a momentary hesitation when you accelerate or does it persist?
Good luck and hopefully more people will chime back in.
09-15-2015, 02:22 PM
#27
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Sounds like the cat has come apart on the inside. Disconnect the cat and see if that solves the problem. If the cat has come apart, that will cause a restriction in the exhaust which will have a huge effect on perfofmance. Remember, an engine is just an air pump. More air in more air out increases performance the other way around decreases performance. A stopped up exhaust will definitely cause performance issues.
09-15-2015, 02:33 PM
#28
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My comment was more about pulling the valve cover to check that the cam is set right. While not a bad idea, I would have expected it to run poorly from the start. It is probably a good idea to check anyway.
It is progress getting power back though it stinks about the continued lagging after pulling the exhaust. Is the lagging a misfire by chance? Mufflers and cats do go bad. Didn't you say that it has a new cat and muffler? Running rich will kill a cat over time.
Other more knowledgable people may have a more elegant diagnostic test for the fuel system that works on these trucks. Hopefully they will chime in. One thing to do is test the fuel pressure. I don't know how hard it is to put a fuel pressure gauge on downstream of the fuel filter on a 22re but that may be a simple way to diagnosis fuel delivery system from the filter to the tank. You can jumper the fuel pump to test without starting.
The lagging (or misfire?) and power loss could be two separate things. The loss of power was fixed by removing the cat and the lagging is something else. If it is a misfire, there is a list of things to try.
The lagging, is it a momentary hesitation when you accelerate or does it persist?
Good luck and hopefully more people will chime back in.
It is progress getting power back though it stinks about the continued lagging after pulling the exhaust. Is the lagging a misfire by chance? Mufflers and cats do go bad. Didn't you say that it has a new cat and muffler? Running rich will kill a cat over time.
Other more knowledgable people may have a more elegant diagnostic test for the fuel system that works on these trucks. Hopefully they will chime in. One thing to do is test the fuel pressure. I don't know how hard it is to put a fuel pressure gauge on downstream of the fuel filter on a 22re but that may be a simple way to diagnosis fuel delivery system from the filter to the tank. You can jumper the fuel pump to test without starting.
The lagging (or misfire?) and power loss could be two separate things. The loss of power was fixed by removing the cat and the lagging is something else. If it is a misfire, there is a list of things to try.
The lagging, is it a momentary hesitation when you accelerate or does it persist?
Good luck and hopefully more people will chime back in.
09-15-2015, 02:34 PM
#29
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The lagging is a momentary hesitation when I accelerate but it changes back and forth as I'm accelerating. Example it will go lag go lag lag go lag go. Maybe not in that order but that's how it feels. I just got done putting my exhaust back together. The cat looked fine but I replaced it any way with a straight tube . So no more cat . It does seem to run better with the fuel system cleaning I did and now that the cat is gone . But I'm not calling it fixed yet the muffler is still making the rattle noise I think it's one of the muffler tubes on the inside that has come loose and now is just dangling inside. Maybe I'm wrong on that
09-16-2015, 02:52 AM
#32
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you test fuel pressure off, idling, and reving the engine to test the fuel pump or restriction. have you ran it with open exhaust? it should be little difference running without the muffler hooked up. if the muffler breaks, or has a piece of old cat or something in it, it will restrict as well.... and should have no rattle to it, unless it's hitting something external, but nothing internal. check the intake piping for cracks, especially at the clamps. pull the plugs and read them for abnormal burning or deposits. double check the timing with it warmed up and the timing check jumper in place...
ps: i have seen several engines run with the distributor 180 out of time.
ps: i have seen several engines run with the distributor 180 out of time.
Last edited by AKHeathen; 09-17-2015 at 04:25 AM. Reason: "should"
09-16-2015, 04:25 PM
#33
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So I got a timing light today and was able to zero in the timing to five degrees with a clip in the relay and 12 with the clip out. It was by quite a bit more then I expected. The response time is faster. I was also able to weld in a new muffler then one that was in there I cut it open and found that the whole thing was rusted on the inside. Feels like my power is more consistent and not lagging like it was . If it keeps this up I'll call it fixed , but first give me some time to drive around
09-17-2015, 06:39 AM
#35
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That's excellent.
It you feel some lag on acceleration, it kinda comes and goes, well you're not alone. I have that, and suspect a failing injector that's got a bad spray pattern, but I'm unsure.. But it's been like that since owning the truck. Techron is the only additive i endorse because I've seen instant results in multiple vehicles. So if you try it and it helps you may have a clue that it's a fuel spray issue.
But good job with the troubleshooting so far. I hope you enjoy your new truck!
It you feel some lag on acceleration, it kinda comes and goes, well you're not alone. I have that, and suspect a failing injector that's got a bad spray pattern, but I'm unsure.. But it's been like that since owning the truck. Techron is the only additive i endorse because I've seen instant results in multiple vehicles. So if you try it and it helps you may have a clue that it's a fuel spray issue.
But good job with the troubleshooting so far. I hope you enjoy your new truck!
09-23-2015, 07:44 PM
#36
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That's excellent.
It you feel some lag on acceleration, it kinda comes and goes, well you're not alone. I have that, and suspect a failing injector that's got a bad spray pattern, but I'm unsure.. But it's been like that since owning the truck. Techron is the only additive i endorse because I've seen instant results in multiple vehicles. So if you try it and it helps you may have a clue that it's a fuel spray issue.
But good job with the troubleshooting so far. I hope you enjoy your new truck!
It you feel some lag on acceleration, it kinda comes and goes, well you're not alone. I have that, and suspect a failing injector that's got a bad spray pattern, but I'm unsure.. But it's been like that since owning the truck. Techron is the only additive i endorse because I've seen instant results in multiple vehicles. So if you try it and it helps you may have a clue that it's a fuel spray issue.
But good job with the troubleshooting so far. I hope you enjoy your new truck!
09-23-2015, 08:04 PM
#38
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2. Is the idle just too low allowing it to die when you brake? Have you checked for all vacuum leaks?
3. How's your timing? A little advance helps with power. Sometimes just a tweak helps find its sweet spot.
4. Do you have the FSM? Because i think you can check fuel pressure at the rail with a borrowed tool from auto parts store. A Google search should help you find a how-to video or blog post most likely on this forum. If you test it, would at least confirm pump is OK. There's troubleshooting steps in that manual for many things and is available here if you goto the link and download it. Also, might just need a fuel filter, did you replace that yet?
Last edited by tj884Rdlx; 09-23-2015 at 08:16 PM.
09-23-2015, 08:10 PM
#39
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1. 85 i think is too low. I think you want at least 87 but not higher because it's not a high compression engine. also the 10% ethanol gas is not great for this truck. Avoid it if possible.
2. Is the issue too low allowing it to die when you brake? Have you checked for any vacuum leaks?
3. How's your timing? A little advance helps with power. Sometimes just a tweak helps find is sweet spot.
2. Is the issue too low allowing it to die when you brake? Have you checked for any vacuum leaks?
3. How's your timing? A little advance helps with power. Sometimes just a tweak helps find is sweet spot.
