So....Got the new Ebay cheap sensors ($16.00ea) yesterday and had a chance to work on it today. A few days ago I back probed every connection for grounds and voltages...The grn/wht wire showed 4.5v even putting metal between the sensor, it would not drop to 0 volts....All connections tested good...
I haven't checked the ground wire from the ICM to the block but will make this check...I was basically checking the black grd wire from the sensor (as connected to block) to other places on the block and it shows no resistance.Double checking ICM ground to block ground will verify there is no...
Yes...I get a spark from the coil even with the sensor wires unplugged when sticking the grn/wht wire to ground from the TB-V...When ordering the 2 aftermarket sensors ($32.00 for both) I was thinking the same. If it fixes my issue, I'll have a spare to put in the boat! Fingers crossed!
I have 2 more sensors coming, but opting for aftermarket so I'm not throwing lots more $$$ away with oem....The distributor shaft is turning, I had the same thought while troubleshooting this and pulled the cap to check! :)
Next step is to put a new sensor in and see if I get spark...If no...
Yes and yes....Installed a brand new Mercruiser Quicksilver Dist sensor (with 3 wires), cap and button... I mounted the black grd wire off the sensor to the front of the engine block, verified block grd to ring on black terminal with ohm meter, no resistance...I tried mounting the sensor black...
Forgot to mention, I have 4.5v coming from the TB-V on the Grn/Wht wire. If the sensor is supposed to send a 0-5v signal to the TB-V throught the Grn/Wht wire , how is this supposed to work? Can anyone explain??
I found a similar post that ended without a solution, so I copy and pasted the intitial post to save time in typing:
I have a 2003 merc 4.3L with thunderbolt V ignition
-I have 12 V at the + on the coil, it is within .3v of battery voltage. So very little wiring resistance
-I have 12 V at the...
Guys,
When installing the 4.3 Vortec back in my Pontoon, one of the ?-20 Aluminum locknuts stripped that attaches the rear of the engine to the transom.
Are these aluminum locknuts critical, or can you replace with steel or stainless. The boat dealer closest to me does not stock these nuts...
Need some prop help. I bought a 23 foot 2003 Odyssey Tritoon w/4.3 190 H.P. Vortec v-6 I/O last fall. Its had at least (2) owners so some history is lost. It has a 15 x 19 Solas S.S. prop and I?m only showing 4000 rpm WOT. While it seems to run very well for a Pontoon @ this RPM (30 mph), I?m...
Need some help here guys. I have a 2003 Tritoon with a Vortec 4.3 I/O. Bought it used last fall and have had it out about a dozen times running about 200 gallon thru it. Last weekend, on Saturday, it ran like a top as usual. On Sunday, unloaded it off the trailer and was idling in the marina...
