Don't get it

[wagoneer]

OK AS CRAZY AS IT SOUNDS 45 degree temp plug in the block heater starts right up run it 15 minutes to pass the first temp guage line (normal I would think ) turn motor off and go to work . in my situation ,weekend fleamarket leaves my car idle for 5 days since I bike to work.
I let it sit 4 days no start so l plug in the block heater 1 hour starts right up. Ruling out the fuel pump starter and batteries?? Tuesday will swap delo 15/40 for delo 5/40 . It has New interstate 850,s new glow plug controller fresh delo 15/40 with filter new fuel filter no fluid leaks no pools of liquid in the valley .When it runs it runs well. Wagoneer

[dhanna6powerstroke]

[Big_Smokey]

im having a tough time making out what you are trying to ask. lots of words in a row without a specific question.

[JJFLASH]

What is your truck? Year and model are helpful.

I had to read it a couple times but I think he is saying that at 45* his truck won't start unless plugged in.

Glow plugs. Controller as mentioned in the op, wiring, glow plugs themselves.

[wagoneer]

2001 E350 7.3 in short with new batteries new glowplug controller recent oil change fuel filter change she will not start if left 4 days without plugging in the block heater.I cycle to work all week and need to start the truck Sunday morning
To go sell at the flea market. It is not cold here 45 degrees is not cold. Thanks Wagoneer

[wagoneer]

OK I promise to let my son who has more sense proofread my ramblings before posting especially after iv,e had a few beers.

[wagoneer]

Originally Posted by JJFLASH

What is your truck? Year and model are helpful.

I had to read it a couple times but I think he is saying that at 45* his truck won't start unless plugged in.

Glow plugs. Controller as mentioned in the op, wiring, glow plugs themselves.

Been thinking along those lines a few bad glow plugs would be suspect as well as the wiring. I was assuming Motorcraft
Glow plugs just do not go bad.

[countryraised]

glow plugs do give out over time and on an '01 in CA, I'll bet they've never been changed. Also intall a new wiring harness under the valve cover to them and the injectors and you'll be good.