Need help on a 2007 Chevy Tahoe fuel injector replacement
- Thread starter Edgar
- Start date
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ivin74
05 NBS Nali
Why would you wanna change it out? The oem injectors are usually good for 350k miles, anyways you need to remove the fuel line, fuel rail and pull the fuel injector really hard. I suggest spraying WD40 on the o-ring turn the injector 360 degress several times then pull, thats its.
What particular code would that be?
https://www.rockauto.com/en/moreinfo.php?pk=1858612&cc=3305736&jsn=2194
You have a code that says you NEED to replace an injector? I have heard of diagnostics leading to that and heard people recommend that as a best guess but never have heard of a code like that that tells you to replace an injector. Am I missing something?
I need to learn to look for that. Thanks.
Or, I was just taking my time to give the best answer possible. Nah.
ivin74
05 NBS Nali
Well, now I can’t find the printout. It did not say I needed to replace an injector. It said the problem could be the cats, an O2 sensor or symptoms of a bad injector. I replaced the particular sensor mentioned. The check engine light comes and goes. Seems it comes more commonly when it’s wet roads. I’ll try to find the sheet tomorrow or I’ll just buy an OBD-2 reader.
ivin74
05 NBS Nali
Your question does state what is the best injector replacememt. I agree with Ron there is no code for injector failure that I'm aware of on any of the obs, nbs, nnbs suvs.
Knowing a little history about your suv would give us more knowledge to give you a more detail diagnostic.
Year, model, engine size, miles and the code you got would help us tremendously.
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Sorry, for now 2014 SLT, 5.3L, 128,*** miles. Still looking for the printout with code. Engine idle is rough, but only sometimes, some black smoke came out of the exhaust when my wife started it yesterday.
Put your vehicle info in your signature. No guess work then. Codes get you in the ball park. Diagnostics tell you what is wrong.
@ivin74, @PNW VietVet
Here are the codes. Mileage is 128,***, not 150,000. I only replaced 1 O2 sensor a couple months back, the check engine light returned. I can't remember which bank I replaced at that time. I replaced with NTK/NGK O2 sensor. Looks like I need to replace some others. Probably should have replaced all 4 at the time. I appreciate any help on steps to take to diagnose and solve this problem.
Here are the codes. Mileage is 128,***, not 150,000. I only replaced 1 O2 sensor a couple months back, the check engine light returned. I can't remember which bank I replaced at that time. I replaced with NTK/NGK O2 sensor. Looks like I need to replace some others. Probably should have replaced all 4 at the time. I appreciate any help on steps to take to diagnose and solve this problem.
The P0301 code is what I would concentrate on first. Everything else is downstream from that. Your #1 cylinder is showing a misfire and needs addressed. It could be the injector, the spark plug or the plug wire or the coil. You may also have a vacuum leak at that cylinder. How old are the plugs and wires?
ivin74
05 NBS Nali
Have you changed out the spark plugs or wires? They are recommended to be changed out at 100k miles, I would start there. If that does not solve the problem get the coils tested, I would not worry about the O2 sensors until you check everything upstream the O2 sensors.
The plugs are original as far as I know, which is probably correct since we picked up the rig at 51,000 miles. What do you recommend for plugs? Iridium? Platinum? Thank you for help
AC Delco Iridium #41162 plugs and these plug wires at the same time: https://www.rockauto.com/en/moreinfo.php?pk=1321695&cc=3305736&jsn=2200&jsn=2200
This air filter if needed: https://www.rockauto.com/en/moreinfo.php?pk=4291635&cc=3305736&jsn=2257
Then clear the codes and drive it and see what comes back. If they are original plugs and wires then you are WAY past when they should have been replaced.
This air filter if needed: https://www.rockauto.com/en/moreinfo.php?pk=4291635&cc=3305736&jsn=2257
Then clear the codes and drive it and see what comes back. If they are original plugs and wires then you are WAY past when they should have been replaced.
I would get a can of starting fluid and spray around the edge of the intake manifold primarily on the drivers side (but do all sides anyway) while the engine is idling and listen for any abrupt changes in the idle, this would indicate a intake gasket leak.
