Cold Starting Issue? Look Here! - Infamous Nissan

nbarr7655 · 10-15-2015, 03:07 AM

Hello all! Last winter (my first winter with my D21) I found that I had an issue as the temps began to drop. Below freezing the truck would be hard to start. As it got colder this got a lot worse. It go so bad at one point I couldn't get my truck started. Being that fall is here it is getting colder again so I was having the issue again and refused to let this happen all over again.

This only applies to you if you have the following issues:
Rough starting when temps drop (usually at or below 40 degrees)
Rough idle/stalling at these same temps.
Having to give it a little gas until your idle evens out.
Truck starts and runs fine after warming up.

Things I replaced that did NOT fix the problem:
All vacuum lines
Battery
Spark Plugs and Wires
Distributor Cap and Rotor
Fuel filter
Oil Change
Seafoamed the gas tank
Alternator
Ignition Relay
Oil Dip Stick heater
Corrected my timing (this fixed other issues

)
Increased (and decreased) idle speed
...and a couple other things I may be forgetting!

So, what fixed my issue? Read below!

THE FIX TO END ALL FIXES IN COLD WEATHER STARTS!
Three words: Fast Idle Solenoid. Now before you go "I already checked mine, it works" keep reading.

I thought mine was working fine and technically it is. I didn't have to replace anything.

CHECK YOUR THROTTLE ROLLER!!!!!!!!
It turns out that I had about a half inch gap between my throttle roller and the little plate that is marked with notches that is attached to my fast idle solenoid. What this means, is that even when the solenoid was rolled over for cold weather, it was never touching the throttle roller meaning it was never opening the throttle for cold weather, as it is suppose to do!

SEE BELOW IMAGE FOR WHAT MINE LOOKED LIKE BEFORE ADJUSTMENT

For Detailed Information on your Fast Idle Solenoid see this awesome thread!

http://www.infamousnissan.com/forum/...ad.php?t=25781

1988-D21 · 10-17-2015, 02:36 AM

Does engine/ambient air temperature make any difference when adjusting this? I mean if it's cold out when I do this do you think it will it run funky when it warms back up? Definitely going to check this out very soon, thanks!

nbarr7655 · 10-17-2015, 04:38 AM

Shouldn't effect this, no. In the morning when it has been around 35 degrees it has been starting fine. And still starts fine and runs fine later on in the day when it is 30 degrees warmer. The solenoid is made so that when it warms up, it rolls in one direction and when it is cold it rolls in the opposite direction. This rolling helps to idle the engine up (when cold) or down (when warmer out).

REYXTC · 03-12-2016, 12:42 PM

Ima try this. Thanks

nbarr7655 · 03-12-2016, 01:21 PM

Quote:

Originally Posted by REYXTC

Ima try this. Thanks

Hope it works

Be sure to make the adjustment when the engine is warmed up. Adjust it just until it starts to touch the plate.

salvamex · 03-14-2016, 04:21 PM

How would I adjuste the the head lights. Witch one is for up and down

ahardb0dy · 03-14-2016, 04:27 PM

How did this turn into headlights?

If you have a new question, start your own thread

nbarr7655 · 03-14-2016, 05:35 PM

Agreed. Google magic or create a different thread, my man.

10-15-2015, 03:07 AM	#1
nbarr7655 Join Date: Jun 2014 Location: Michigan Posts: 480 Vehicle: 1988 Nissan D21 4x2 L4 Thanks: 9 Thanked 9 Times in 7 Posts	Cold Starting Issue? Look Here! Hello all! Last winter (my first winter with my D21) I found that I had an issue as the temps began to drop. Below freezing the truck would be hard to start. As it got colder this got a lot worse. It go so bad at one point I couldn't get my truck started. Being that fall is here it is getting colder again so I was having the issue again and refused to let this happen all over again. This only applies to you if you have the following issues: Rough starting when temps drop (usually at or below 40 degrees) Rough idle/stalling at these same temps. Having to give it a little gas until your idle evens out. Truck starts and runs fine after warming up. Things I replaced that did NOT fix the problem: All vacuum lines Battery Spark Plugs and Wires Distributor Cap and Rotor Fuel filter Oil Change Seafoamed the gas tank Alternator Ignition Relay Oil Dip Stick heater Corrected my timing (this fixed other issues ) Increased (and decreased) idle speed ...and a couple other things I may be forgetting! So, what fixed my issue? Read below! THE FIX TO END ALL FIXES IN COLD WEATHER STARTS! Three words: Fast Idle Solenoid. Now before you go "I already checked mine, it works" keep reading. I thought mine was working fine and technically it is. I didn't have to replace anything. CHECK YOUR THROTTLE ROLLER!!!!!!!! It turns out that I had about a half inch gap between my throttle roller and the little plate that is marked with notches that is attached to my fast idle solenoid. What this means, is that even when the solenoid was rolled over for cold weather, it was never touching the throttle roller meaning it was never opening the throttle for cold weather, as it is suppose to do! SEE BELOW IMAGE FOR WHAT MINE LOOKED LIKE BEFORE ADJUSTMENT For Detailed Information on your Fast Idle Solenoid see this awesome thread! http://www.infamousnissan.com/forum/...ad.php?t=25781 Last edited by nbarr7655; 10-17-2015 at 04:39 AM.

03-12-2016, 12:42 PM	#4
REYXTC Join Date: Jan 2009 Location: Las Vegas Posts: 299 Vehicle: 88 Hardbody Thanks: 11 Thanked 23 Times in 23 Posts	Ima try this. Thanks __________________ Hydroz only! BOTTOM B$$$H

03-14-2016, 04:27 PM	#7
ahardb0dy The Post Count Whore Join Date: May 2014 Location: Sorrento, Florida Age: 53 Posts: 7,344 Vehicle: 2017 Nissan Frontier Desert Runner Thanks: 63 Thanked 841 Times in 777 Posts	How did this turn into headlights? If you have a new question, start your own thread __________________ My name is Tony and I'm a Infamousaholic Current truck - 2017 Nissan Frontier Desert Runner , (formerly owned: 1993 Nissan Hardbody king cab 2wd, 90 Nissan Sentra, 94 Nissan Pathfinder SE 4x4, 05 Nissan Titan, 87 Nissan SE-V6 4x4 king cab, 94 Infiniti Q45t & 80 Datsun 310GX )

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10-17-2015, 02:36 AM	#2
1988-D21 Join Date: Jun 2014 Location: Northern AZ Posts: 74 Vehicle: 1988 Nissan D21 Hardbody Thanks: 24 Thanked 4 Times in 3 Posts	Does engine/ambient air temperature make any difference when adjusting this? I mean if it's cold out when I do this do you think it will it run funky when it warms back up? Definitely going to check this out very soon, thanks!

10-17-2015, 04:38 AM	#3
nbarr7655 Join Date: Jun 2014 Location: Michigan Posts: 480 Vehicle: 1988 Nissan D21 4x2 L4 Thanks: 9 Thanked 9 Times in 7 Posts	Shouldn't effect this, no. In the morning when it has been around 35 degrees it has been starting fine. And still starts fine and runs fine later on in the day when it is 30 degrees warmer. The solenoid is made so that when it warms up, it rolls in one direction and when it is cold it rolls in the opposite direction. This rolling helps to idle the engine up (when cold) or down (when warmer out).

03-14-2016, 04:21 PM	#6
salvamex Join Date: Jul 2015 Location: Georgia Posts: 2 Vehicle: 89 nissan d21 heardbody Thanks: 0 Thanked 0 Times in 0 Posts	How would I adjuste the the head lights. Witch one is for up and down

03-14-2016, 05:35 PM	#8
nbarr7655 Join Date: Jun 2014 Location: Michigan Posts: 480 Vehicle: 1988 Nissan D21 4x2 L4 Thanks: 9 Thanked 9 Times in 7 Posts	Agreed. Google magic or create a different thread, my man.