1999 Fuel Pressure Regulator Long Cranking (ECT replaced) Topic is solved

[surfbug1]

This ended up being the coolant temp sensor but at least I learned a few new things along the way.

hi

I'm having extended crank times

just curious, how does the coolant temp sensor come into play here, and why did this fix the issue?

al

[wizechatmgr]

This ended up being the coolant temp sensor but at least I learned a few new things along the way.

hi

I'm having extended crank times

just curious, how does the coolant temp sensor come into play here, and why did this fix the issue?

al

Coolant temp sensor determines fuel mixture at start - if it's hot, less is needed, if it's cold, the mixture is enriched. When the sensor goes bad, it tends to guess towards the hot side, which means not enough fuel to fire correctly.

[surfbug1]

This ended up being the coolant temp sensor but at least I learned a few new things along the way.

hi

I'm having extended crank times

just curious, how does the coolant temp sensor come into play here, and why did this fix the issue?

al

Coolant temp sensor determines fuel mixture at start - if it's hot, less is needed, if it's cold, the mixture is enriched. When the sensor goes bad, it tends to guess towards the hot side, which means not enough fuel to fire correctly.

now it's starting fine, no delays

I will keep an eye on it, thanks for your reply!

Al

[wizechatmgr]

hi

I'm having extended crank times

just curious, how does the coolant temp sensor come into play here, and why did this fix the issue?

al

Coolant temp sensor determines fuel mixture at start - if it's hot, less is needed, if it's cold, the mixture is enriched. When the sensor goes bad, it tends to guess towards the hot side, which means not enough fuel to fire correctly.

now it's starting fine, no delays

I will keep an eye on it, thanks for your reply!

Al

In my experience they first fritz at a particular temp and then full on fail. If that's the case, you'll find out when the season changes most likely, or smack dab in the middle of winter.