Any auto mechanics on here? | |
Mousse7714
User ID: 82504011 United States 04/14/2022 08:16 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 82393464 Russia 04/14/2022 08:17 PM Report Abusive Post Report Copyright Violation | Haha...that's what I thought too. I love my 01 Tahoe z28, but after that generation they may have outsmarted themselves. (Yes.z28.i put 1984 Camaro Z28 emblems on it instead of the z71 emblem. Everyone should do it.) Does the neck of the gas tank fill up and shut off the pump every ten seconds? |
Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 08:21 PM Report Abusive Post Report Copyright Violation | No such thing as "permanent codes". Quoting: Anonymous Coward 79104722 You cleared the light but didn't fix the problem. Of course there's permanent codes. Look it up. They stay in the ECU memory until the ECU decides that the issue is fixed. You can't clear a permanent code with a scan tool. If the ECU decides that the issue is fixed it wipes the code. Last Edited by Swearbox on 04/14/2022 08:25 PM Chill out, its just a Lancashire Rose |
Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 08:22 PM Report Abusive Post Report Copyright Violation | Haha...that's what I thought too. I love my 01 Tahoe z28, but after that generation they may have outsmarted themselves. (Yes.z28.i put 1984 Camaro Z28 emblems on it instead of the z71 emblem. Everyone should do it.) Does the neck of the gas tank fill up and shut off the pump every ten seconds? Not noticed that. Chill out, its just a Lancashire Rose |
Anonymous Coward User ID: 82842505 04/14/2022 08:30 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 82842505 04/14/2022 08:34 PM Report Abusive Post Report Copyright Violation | If you live where road salt is used you probly have an air leak in the fuel system. Quoting: Anonymous Coward 82844815 If the engine has a coil on each spark plug, switch coil 4 to plug 1 see if the code changes. Misfire could be oil leaking from can cover into spark plug well. Can't swap the coils as they are all different lengths....plus I don't have an OBD2 code scanner. Ok I get it has old fashion plug wires. I'd at least take out spark plug 4 see if its fouled, melted, or cracked. Get a spray bottle of water, at night spray the number 4 plug wire. If there are sparks it needs replaced. I already replaced all 4 plugs. Remove the cylinder 4 plug, check for cracks above the nut below the terminal. Could have cracked it during installation, especially if the socket doesnt have a rubber insert. A crack there allows the spark to ground at the nut rather than the gap. |
Anonymous Coward User ID: 82842505 04/14/2022 08:35 PM Report Abusive Post Report Copyright Violation | |
Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 08:37 PM Report Abusive Post Report Copyright Violation | ... Quoting: Swearbox Can't swap the coils as they are all different lengths....plus I don't have an OBD2 code scanner. Ok I get it has old fashion plug wires. I'd at least take out spark plug 4 see if its fouled, melted, or cracked. Get a spray bottle of water, at night spray the number 4 plug wire. If there are sparks it needs replaced. I already replaced all 4 plugs. Remove the cylinder 4 plug, check for cracks above the nut below the terminal. Could have cracked it during installation, especially if the socket doesnt have a rubber insert. A crack there allows the spark to ground at the nut rather than the gap. The car coded before I changed the plugs. When I installed the new ones I used a socket with a rubber insert. Fairly certain i didn't damage the new plug. I just ordered a new set of ingintion leads which should arrive Sunday so we'll see what happens after I install them. Chill out, its just a Lancashire Rose |
Anonymous Coward User ID: 80911674 United States 04/14/2022 09:20 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 73418185 United States 04/14/2022 09:24 PM Report Abusive Post Report Copyright Violation | |
Dogsbollocks
User ID: 79380926 United Kingdom 04/14/2022 09:26 PM Report Abusive Post Report Copyright Violation | That is my advice having suffered a torturous few months with a Honda once. It was like playing that game "Whack a Mole". Resolve one Code,then another would Pop up. So on,and so forth. Last Edited by Dogsbollocks on 04/14/2022 09:29 PM Dogsbollocks |
Mousse7714
User ID: 82504011 United States 04/14/2022 09:45 PM Report Abusive Post Report Copyright Violation | Haha...that's what I thought too. I love my 01 Tahoe z28, but after that generation they may have outsmarted themselves. (Yes.z28.i put 1984 Camaro Z28 emblems on it instead of the z71 emblem. Everyone should do it.) Does the neck of the gas tank fill up and shut off the pump every ten seconds? Not yet...i think I adopted it after alot of things had to be replaced. Right now it's the cabin stuff that's failing. 20 years is a long time. Mousse7714 |
DuckNCover
User ID: 82708685 United States 04/14/2022 09:45 PM Report Abusive Post Report Copyright Violation | CODES P0441 AND P0304 Quoting: Anonymous Coward 81197635 P0441 = EVAP PURGEFLOW MONITOR that means insufficient or excessive vapor flow detected during evaporative system . P0304= a misfire in cylinder # 3 answers to these p0441 a bad gas cap possible , and p0304 possible bad coil on cylinder #3, try clearing codes and see if they show back up or you get bad performance , then try replacing gas cap and then coil pack [link to www.fixya.com (secure)] P0304 is a misfire on cylinder 4... If it's not the coil, then it could be the fuel injector or the O-rings causing a vacuum leak. Are you getting the signals from the engine computer to turn on the injector. It also could be a Vacuum leak on cylinder 4. Which means the Plenum Gasket (upper intake manifold gasket) could be causing a vacuum leak. If you have a plastic intake manifold, these are notorious to crack and cause vacuum leaks... |
DuckNCover
User ID: 82708685 United States 04/14/2022 09:48 PM Report Abusive Post Report Copyright Violation | No such thing as "permanent codes". Quoting: Anonymous Coward 79104722 You cleared the light but didn't fix the problem. Of course there's permanent codes. Look it up. They stay in the ECU memory until the ECU decides that the issue is fixed. You can't clear a permanent code with a scan tool. If the ECU decides that the issue is fixed it wipes the code. A lot of the permanent codes are from the ABS system... There are a few that are in the OBD2 system, such as the vehicle going into Limp Mode... |
Anonymous Coward User ID: 778194 United States 04/14/2022 09:57 PM Report Abusive Post Report Copyright Violation | |
Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 09:59 PM Report Abusive Post Report Copyright Violation | CODES P0441 AND P0304 Quoting: Anonymous Coward 81197635 P0441 = EVAP PURGEFLOW MONITOR that means insufficient or excessive vapor flow detected during evaporative system . P0304= a misfire in cylinder # 3 answers to these p0441 a bad gas cap possible , and p0304 possible bad coil on cylinder #3, try clearing codes and see if they show back up or you get bad performance , then try replacing gas cap and then coil pack [link to www.fixya.com (secure)] P0304 is a misfire on cylinder 4... If it's not the coil, then it could be the fuel injector or the O-rings causing a vacuum leak. Are you getting the signals from the engine computer to turn on the injector. It also could be a Vacuum leak on cylinder 4. Which means the Plenum Gasket (upper intake manifold gasket) could be causing a vacuum leak. If you have a plastic intake manifold, these are notorious to crack and cause vacuum leaks... I like this answer as it goes way beyond just plugs, plug wires and coil pack...I hope it isn't this but thanks for the comment. Chill out, its just a Lancashire Rose |
DuckNCover
User ID: 82708685 United States 04/14/2022 10:01 PM Report Abusive Post Report Copyright Violation | CODES P0441 AND P0304 Quoting: Anonymous Coward 81197635 P0441 = EVAP PURGEFLOW MONITOR that means insufficient or excessive vapor flow detected during evaporative system . P0304= a misfire in cylinder # 3 answers to these p0441 a bad gas cap possible , and p0304 possible bad coil on cylinder #3, try clearing codes and see if they show back up or you get bad performance , then try replacing gas cap and then coil pack [link to www.fixya.com (secure)] P0304 is a misfire on cylinder 4... If it's not the coil, then it could be the fuel injector or the O-rings causing a vacuum leak. Are you getting the signals from the engine computer to turn on the injector. It also could be a Vacuum leak on cylinder 4. Which means the Plenum Gasket (upper intake manifold gasket) could be causing a vacuum leak. If you have a plastic intake manifold, these are notorious to crack and cause vacuum leaks... I like this answer as it goes way beyond just plugs, plug wires and coil pack...I hope it isn't this but thanks for the comment. I work for Autozone, in management, with 20 years experience working there... |
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Anonymous Coward User ID: 41173011 United States 04/14/2022 10:41 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 79389141 United States 04/14/2022 10:43 PM Report Abusive Post Report Copyright Violation | No such thing as "permanent codes". Quoting: Anonymous Coward 79104722 You cleared the light but didn't fix the problem. Of course there's permanent codes. Look it up. They stay in the ECU memory until the ECU decides that the issue is fixed. You can't clear a permanent code with a scan tool. If the ECU decides that the issue is fixed it wipes the code. Actually hes right. Some cars have non volatile memory such as Volkswagen disconnectiing the battery will not clear it. A vehicle has 3 DTC states. Pending, Active, Historic. Typically on a vehicle (without volatile memory) that has had the battery disconnected they will all clear, if the code immediately comes back at crank up then the code is still active because the fault is still immediately present (a harness unplugged for example) Some faults require extended monitoring to confirm which is why often they wont become active untill after 3 ignition and run cycles. The vehicle has to go into closed loop. Something like exhaust or evap faults are like this because the fault can be subtle and already things like 02 sensors unless its wideband are not all that sensitive. Pending codes are when the car has reached closed loop and detects a fault that is |
Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 10:47 PM Report Abusive Post Report Copyright Violation | |
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Swearbox
(OP) User ID: 77978222 Canada 04/14/2022 11:04 PM Report Abusive Post Report Copyright Violation | Ok, suit yourself, the oil piston ring is different than the 2 piston compression rings Not dissing your suggestion, I'd just rather try and rule out the obvious before having to tear an engine down. Chill out, its just a Lancashire Rose |
Swearbox
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