Recent content by diesel dave

If the factory glow plug system is functioning properly,these trucks will start below 0 WITHOUT the help of a block heater.

This Mack was/is old school. No pcm,computers,emissions crap. Still on the job in my former business. The problem was in the ip.

Years ago I had a Mack with similar issues. I finnaly called a heavy truck repair shop and was told I better get it in for repair ASAP. They recommended towing. Not wanting a big towing bill,I opted to have a driver take it to the shop. Big mistake. On the way,the IP went to WOT and trashed the...

So sad that Ukrainian forces served/fought in Kosovo and Iraq and now are alone in their fight against Russia.

I also found the M/T tires to be better in deep snow than the baha’s. I’m sure some of it has to do with the baha’s heavier ply rating.

I have no idea why anyone,past or present would add gas to diesel. I’ve had heavy trucks for decades and never heard of this. Sounds like “an old truckers tale” like the reason truckers leave thier trucks running is “because it takes more fuel to start them than to leave them run”.Why experiment...

Mogman is 100% correct. Any heavy duty diesel shop will tell you that when you have a weak battery in a multiple setup,be it 2,3,or 4 batteries,you ALWAYS should replace all batteries in the system. If you only replace the weak battery,you will be constantly be “chasing “batteries as the others...

You put the old fuel back in??

I agree,but it must have been a popular field mod. Mine came that way and I’ve seen several others over the years. Maybe one particular base?

It hasn’t been that cold yet in pa. I’ve never used block heaters ect and never had issues starting at 0. Yes,at colder temps they do knock and clatter a little more,but this is normal. Below 0 can get a little iffy with any diesel But we’re not there yet. I’d look at your entire starting...

X2 what RWH said. I lost a Mack engine same way. Stuck on WOT and driver didn’t know how to shut off fuel.

White smoke tells me 2 things; It’s getting fuel Bad glow plug or plugs. Are you sure you checked all 8? In cold weather it only takes 1 bad plug to cause hard starting,especially on a worn engine.

Mines 2000@40,2500@50,3000@60. So yes

It’s hard to diagnose “from afar”,but from what you have described,it sounds to me like normal cold weather diesel start up. But it doesn’t hurt to check the glow plugs.

I did a similar install. Cops don’t like them. Too bright. Off road or you’d better turn them off for on-coming traffic. Maybe could be wired to turn off with dimmer switch?