On this latest trip, I was in Eastern Arizona in the mountains. Both times, going downhill, the coily-grid heater light came on and it gonged like 7-8 times. And I lost a lot of power. Both times, the light went out about ten minutes later and power came back. BUT, then I noticed that whenever I made boost, I was blowing white smoke. This was with my Smarty on #5, which is what I use when towing. I had my truck camper and was towing a SxS on a small open trailer... gross-combined was probably 17k.

Before leaving to come home, I reprogrammed the truck back to stock. It ran flawlessly. No white smoke, no coily-lights, etc.

The last time I got the coily-light was when I was unloaded, headed down I-15 towards Sacramento from Oregon. I took an exit and stopped at a burger joint to check what was up, and found a cracked injector line spewing fuel everywhere. The truck wouldn't start so I had to have it towed and have a shop replace the line.

Nobody has ever been able to tell me exactly what that coily-light means (other than when you go to start it first thing in cold weather). I've had the truck for 13 years and it has 127k miles on it now.

The white smoke has me concerned. A friend I was camping with suspects an injector problem, but I'd rather not spend a bunch of money on injectors if that's not it. He also says it could be a fuel prressure problem... fuel pump is still stock; in fact, I just changed the fuel filter less than 1000 miles ago.

Any ideas?

Rob

 

excessive fuel return while motoring

typically pointing to an injector issue.
if you run a scan for codes, it will likely have a p1222 or p1223 code. The dash read out will not have it stored.

 

I forgot to mention... I did scan codes; nothing other than a reference to fan speed; might be related to when I had the fan clutch replaced a year ago.

If I do need injectors, I wanted to go with +60 hp nozzles (maybe more, not sure). Are remans worth considering? Any brands to avoid? Etc?

 

I just ordered Bosch remans but I personally don’t run a tune or anything. I’ve been dealing with the grid light for a couple years. It all started while hailing up a hill and when I ease off the pedal at the crest of the hill it would pop the light. Went away quickly so I never was concerned with it. About 6 weeks ago it popped same way, then never went away. About 4 weeks it was on steady, went away finally one day and then popped on again while driving on the highway with no load and just randomly went away yesterday while I was on my way to my brothers to run the scanner on the truck. I experienced some heavy power loss while it was on. Just couldn’t get the truck to get up and go. Ran some tests on the scanner and kill tests to try isolate the problem. Cylinder 1 and 2 in my case made an almost unnoticeable difference when injectors were killed.

 

I had good luck years ago with F1. Had mine tested and rebuilt.
Back to morning brew . . .

 

Thank!! I had forgotten about F1. I think they'll be the ones I go with. Just have to figure out which nozzle and extra flow.

I suppose I could email them and ask... that's a slippery slope. I emailed XtremeDiesel a few weeks back, and carefully explained my situation (prior to thinking I needed injectors) and asked for opinions. Ten days later I got a reply that didn't in any way reflect what I had said; fool didn't even notice I said I had a MANUAL TRANSMISSION. So they lost a customer.