Block heater issues maybe

T_rider_0013 · Nov 7, 2016

Help... I plug my 2000 f350 SD in at night and this morning it wouldn't start for almost 3 mins. Wait to start light is working. It's been working till today. Once it's started it runs great even letting it sit all day while at work. Am I looking at glow plug relay or what?

Sent from my SAMSUNG-SM-G930A using Tapatalk

79jasper · Nov 7, 2016

Glowplug system. And likely block heater or cord.

Sent from my SAMSUNG-SM-G935A using Tapatalk

ghohouston · Nov 7, 2016

Unless the temperature is cold where you're at, I'll bet your injectors are worn. Truck should fire up at 30 degrees even without glow plugs if everything works right.

TARM · Nov 8, 2016

What was the temp?

I have had no trouble starting even at freezing 32 f with just glow plugs.

But combine worn injectors weak HPOP or even LPOP etc can magnify any of these effects.

bcvickers · Nov 29, 2016

Testing your GPR is pretty easy with just a test light as it's right on top of the motor. The WTS light will still "work" even with a bad GPR. Also, I'd bet a dollar to donuts that you're block heater cord is bad. Also pretty easy to test with a multi-meter. It plugs in right above your oil filter and there's a clip holding it on.

Like other's have said and I have experienced, starts down to 20-30f should be fine with just glow plugs. I've tested mine by accident a couple times already this fall/winter and with 170k on an '02 she fired right up. That is with 2 new batteries and a new starter this past summer however.

TyCorr · Nov 29, 2016

My truck starts at 10 degrees with no glowplugs. Turn the key, *fuel pump hum* rrrrrr-wham...if the truck engine isnt completely tired and low compression and the injectors arent shot it should start. If any of the others are present and it wont start after a single wts light cycle, you got issues.

T_rider_0013 · Nov 29, 2016

Changed glow plug relays and problem still occurs but not as bad as before. Was doing some research and found that the ebpv could cause this same exact issue I'm having. Correct?

Sent from my SAMSUNG-SM-G930A using Tapatalk

TyCorr · Nov 29, 2016

I don't think an exhaust back pressure valve is gonna cause all these issues. You have a tired motor, tired glow olugs, or a combination of both mixed in with worn injectors.

T_rider_0013 · Nov 29, 2016

Injectors are brand new as of 2 months ago or so. Idm is new fuel pick in tank and fuel pump with in the month

Sent from my SAMSUNG-SM-G930A using Tapatalk

T_rider_0013 · Nov 29, 2016

Uvch are newer since may ish June ish

Sent from my SAMSUNG-SM-G930A using Tapatalk

TyCorr · Nov 29, 2016

So then, the gp's arent getting it done. You can do a search and see how to ohm them out at the harness.

T_rider_0013 · Nov 29, 2016

Could it be fuel heater or as said earlier the block heater itself?

Sent from my SAMSUNG-SM-G930A using Tapatalk

TyCorr · Nov 29, 2016

I dont think so bud. Fuel heater doesnt do anything really. And the block heater only heats the coolant and a small amount if oil. My truck stays outside. And hasnt even had the cord for the heater attached for 7 years. Mine starts just fine.

dsberman94 · Nov 29, 2016

You're glowplugs are 17 years old if they're the original, try changing them. they do go bad over time from using them. You're fuel system isn't the issue, nor is the idm.

T_rider_0013 · Nov 29, 2016

How do I change them?

Sent from my SAMSUNG-SM-G930A using Tapatalk

T_rider_0013 · Nov 29, 2016

Closest I got that was doing the uvchs

Sent from my SAMSUNG-SM-G930A using Tapatalk

Arisley · Nov 30, 2016

Pull them like spark plugs. Make sure you only get Motorcraft or Beru.

TyCorr · Nov 30, 2016

Ive been using dieselrx the last five years. I put them in for three years. Pulled em out two years ago to do some vwork. They looked new other than sootie. I pulled them out in August of this year to test them and visually inspect them. Good to go.

dsberman94 · Nov 30, 2016

TyCorr said:
Ive been using dieselrx the last five years. I put them in for three years. Pulled em out two years ago to do some vwork. They looked new other than sootie. I pulled them out in August of this year to test them and visually inspect them. Good to go.

Same but only for the past 3.5 years. Pulled them out last summer to replace injectors and they all looked good still. No issues with them swelling like I've heard of. Seem good to me.

sootie · Dec 2, 2016

TyCorr said:
Ive been using dieselrx the last five years. I put them in for three years. Pulled em out two years ago to do some vwork. They looked new other than sootie. I pulled them out in August of this year to test them and visually inspect them. Good to go.

Hey! leave me out of this LOL