SunlitComet
OBS Jedi-Do Good
mine is noisy. i have a replacement but have not done it yet.
Noisy IAC, No start; fuel, IAC, or?
- Thread starter nimrod.sixty9
- Start date
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OP
OP
nimrod.sixty9
Hold on, I got this.
Took off cap and rotor, both were dirty; cleaned points with a Dremel wire wheel. Fired right up multiple times, told girl she can drive the truck to work the following day. Comes back in in the morning and wakes to tell me it's once again doing the same thing.
Still 100% random...
Does not seem starter or short related. Itll either fire right up, or turn and turn then kick back, or turn and immediate kick back. Never just turns, turns, then starts. Pretty much can immediately tell if it will run or not.
I do need to check FP tho. Cant find my damned gauge... Going to have to rent for now.
Spark testing would be difficult due to the randomness. Already changed coil to my Tahoe and it's been running great for 4 days now. Ive pulled the bracket fairly far away from the coil wire when doing the coil change. If that had been an issue, I cant imagine it would be the problem now. Ill take a visual just to sure and maybe even change them between vehicles.
Maybe I should try the IAC; cant imagine it would cause this hell, but never know I suppose.
Really appreciate the help
0ytpy07
Last edited:
sounds like something is stopping the starter from spinning. usually the starter is on a separate circuit from most sensors. This seems like an issue with the ignition switch, ground/wiring issue, starter itself, maybe even neutral safety switch. this is what i would check:
-check battery cables for corrosion, make sure they are really clean and tight.
-check ground to engine
-check wiring to starter
-run a jumper cable from the battery to the starter directly with the key in the on position. this will rule out whether it is a bad switch, solenoid, etc.
-check battery cables for corrosion, make sure they are really clean and tight.
-check ground to engine
-check wiring to starter
-run a jumper cable from the battery to the starter directly with the key in the on position. this will rule out whether it is a bad switch, solenoid, etc.
SunlitComet
OBS Jedi-Do Good
what bracket?
OP
OP
nimrod.sixty9
Hold on, I got this.
Im still not convinced its the starter because there are times it turns and turns and turns, but the truck never runs. Its either instant start, or nothing.
On the battery one point was a little loose and both were dirty. All good to go with same result.
The one that goes over the pass side of the distro. Holds a wire loom in the rear and bolts to the rear of the head (i think) and to the upper plenum with the coil. Obviously put there by the worlds biggest *******.
SunlitComet
OBS Jedi-Do Good
ok but put there for a reason. isolation of certain components to prevent one from hurting another.
OP
OP
nimrod.sixty9
Hold on, I got this.
It's still there sun. Just pushed out of the way.
SunlitComet
OBS Jedi-Do Good
probably won't do any harm moving a tad bit.
OP
OP
nimrod.sixty9
Hold on, I got this.
Finally got fuel pressure tester. Battery to weak to really turn it over but enough to get fuel pressure.
First prime immediately gets 63+/- PSI and stayed after attempting to to start truck.
Again tho, the issue had been random, so whose to say this time it could have been a start scenario.
Will test again when batt is charged.
First prime immediately gets 63+/- PSI and stayed after attempting to to start truck.
Again tho, the issue had been random, so whose to say this time it could have been a start scenario.
Will test again when batt is charged.
SunlitComet
OBS Jedi-Do Good
with that pressure it would seem that you have not pump issues. a damaged relay could slow down pressure build up but yours sound like either of those is a none issue. i would test the iac while it is out and inspect its behavior and possible try a used icm/coil if possible to see if you have thermal issues with them.
