How much throttle for cold start? - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > 6.5L Diesel Engine
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Advertise

6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Like Tree2Likes
  • 1 Post By DieselPro
  • 1 Post By smdk2500

Reply
 
LinkBack Thread Tools
Old Yesterday, 04:59 PM   #1 (permalink)
mfoster442
Diesel Starter
 
Join Date: Mar 2006
Location: Tigard, OR
Posts: 198
iTrader Score: 0 reviews

How much throttle for cold start?

Hey Everyone,

1994 6.5TD K1500. Stock engine except K-47

Recently I had to park my truck overnight (Timberline at Mt Hood) and it was in the temp was in the low teens. It took a few tries and glow plug cycles to get ti started, but it did start.

My question is, do you give it any throttle? I did, but i'm not sure if it started because I gave it throttle, or in spite of it. Without throttle it just never seemed to catch, but maybe it was coincidence when it finally caught that I was applying about mid travel of the pedal for throttle. I live in wester OR so dont' usually deal with cold temps.

What's the proper way to start these things?

Thanks!

__________________
1994 6.5L TD K1500
Ex Cab-short bed
Stock engine
160K or so miles
K-47
6" Lift
35" X12.5"X15" Tires
Offline  
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old Yesterday, 05:50 PM   #2 (permalink)
OkDually
Administrator
 
OkDually's Avatar
 
Join Date: Jul 2013
Location: N.E. Oklahoma
Posts: 14,149
iTrader Score: 0 reviews

DieselPlace.com Lifetime Premium Member

Quote:
Originally Posted by mfoster442 View Post
Hey Everyone,

1994 6.5TD K1500. Stock engine except K-47

Recently I had to park my truck overnight (Timberline at Mt Hood) and it was in the temp was in the low teens. It took a few tries and glow plug cycles to get ti started, but it did start.

My question is, do you give it any throttle? I did, but i'm not sure if it started because I gave it throttle, or in spite of it. Without throttle it just never seemed to catch, but maybe it was coincidence when it finally caught that I was applying about mid travel of the pedal for throttle. I live in wester OR so dont' usually deal with cold temps.

What's the proper way to start these things?

Thanks!
You should be able to start the 6.5L without any throttle input..

I would start by going through your glow plug system.
Harness in good condition and all connections to glows good?
Replace the glow plugs if you haven't already.

You should also consider installing the Glow Plug Override mod listed in the FAQ to give you a manual glow control to allow to you give a little more glow time to heat the prechambers for easier starting.

Are you using an anti-gel additive in your fuel?
If not, you should be to protect the fuel system during those low temps
If you haven't done so in a while, change your fuel filter.

__________________
1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube Winter Formula


Proud member #1039 of The 3500 Dually Club


Last edited by OkDually; Yesterday at 05:52 PM.
Offline   Reply With Quote Quick reply to this message
Old Yesterday, 06:35 PM   #3 (permalink)
mfoster442
Diesel Starter
 
Join Date: Mar 2006
Location: Tigard, OR
Posts: 198
iTrader Score: 0 reviews

Thanks OKDually. Well...with these trucks there's never an excuse to be bored! Always something to check! LOL
__________________
1994 6.5L TD K1500
Ex Cab-short bed
Stock engine
160K or so miles
K-47
6" Lift
35" X12.5"X15" Tires
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old Yesterday, 06:37 PM   #4 (permalink)
Tommygunner
Diesel Specialist
 
Tommygunner's Avatar
 
Join Date: Feb 2010
Location: Northesat Nevada
Posts: 3,005
iTrader Score: 0 reviews

If your glow plug system is operating properly it should start with your foot off the throttle.
You may need the glow plug override mod. That helps.
If you are using AC Delco 60g plugs. They take a bit longer to heat up than some other plugs. Newer trucks have a longer glow time programed into them for the 60G plugs. Bosch dura terms work better in older pre 96 trucks.
__________________
The beauty of the Second Amendment is that it will not be needed until they try to take it

If Americans ever allow banks to control their currency. First by deflation then inflation. The banks will deprive the people of all property. Until their children wake up homeless.
1998 GMC K1500 WT, 6.5 TD. 80,000 miles. Auto, 3.73 gears. Remote PMD mounted on the radiator support. KOJO tune WOW! Carter HD lift pump. Feed the beast, GM8 turbo with Hurricane impeller. K&N filter. Ported, gasket matched upper intake. Leroy's braded stainless steel oil lines.
New Bosch injectors. Flow matched 2200 lbs pop
3 1/2" custom Aero turbine exhaust. Nutered Cat
2" Lift RS5000 Shocks. 285 X 17 Bridgestone AT summer tires. 12.50 x 33 x 15 Procomp MTs winter. Powertrax No slip locker in rear.
Offline   Reply With Quote Quick reply to this message
Old Yesterday, 08:41 PM   #5 (permalink)
DieselPro
Diesel Guru
 
DieselPro's Avatar
 
Join Date: Mar 2004
Posts: 7,170
iTrader Score: 0 reviews

Almost positive the IP does not use throttle input while cranking, so any throttle position will be fine. The ECM controls fuel output at cranking.
__________________
If you read this stuff anywhere on the net you probably read it here first!
Offline   Reply With Quote Quick reply to this message
Old Yesterday, 09:00 PM   #6 (permalink)
smdk2500
Diesel Newbie
 
Join Date: Apr 2019
Location: Nebraska
Posts: 31
iTrader Score: 0 reviews

i agree with checking the glow plugs. Ive been starting mine in single digit temps some mornings with a single glow cycle and as far as i know my glow plugs are the original from 1995. I also haven't plugged it in yet. I know I'm rolling the dice and winning on it starting.
__________________
1995 K2500 ECLB 6.5
Diamond Eye turbo back
4.10
PMD in bumper
Stainless braided Oil cooler lines
S&B air intake
Leroys Lift pump harness
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 12:49 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide