Hard to start when warm
Senior User
Joined: Feb 2013
Posts: 171
Likes: 0
From: carmichael, ca
I've heard of IPRs dying when warm. The solenoids fail when they get hot. Next time it happens pour some ice down around the IPR and give it a few minutes to cool. If it starts normally that's likely the issue. Solenoids are not available separately, gotta buy the whole enchilada.
Elder User
Joined: Jun 2012
Posts: 536
Likes: 2
From: N. Va.
Nice info on the Hot IPR solenoid guys. I'll have to remember that one.
Try the ice test they mentioned.
Do you have a bud that has Android? If not, time to make the switch man. You can get an Android device with Bluetooth pretty cheap then get the Bluetooth OBII adapter. If you can swing it it will be a good investment as you can monitor a lot of vitals live driving down the road.
Try the ice test they mentioned.
Do you have a bud that has Android? If not, time to make the switch man. You can get an Android device with Bluetooth pretty cheap then get the Bluetooth OBII adapter. If you can swing it it will be a good investment as you can monitor a lot of vitals live driving down the road.
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Senior User
Joined: Jun 2013
Posts: 140
Likes: 0
From: Greenville, PA
Haven't had a chance to try any method. Have noticed it takes less cool down time for the truck to start normally again but with the temperature being in the teens that is to be expected.
Another thing I read was if the starter RPM was too low. Should be 100rpm for cold start and 180 for warm. Is there any way to tell, again without diagnostic tools, what the rpms are?
Info I found for warm start problems:
http://oregonfuelinjection.com/pdf/f...diagnostic.pdf
Another thing I read was if the starter RPM was too low. Should be 100rpm for cold start and 180 for warm. Is there any way to tell, again without diagnostic tools, what the rpms are?
Info I found for warm start problems:
http://oregonfuelinjection.com/pdf/f...diagnostic.pdf
Senior User
Joined: Feb 2013
Posts: 171
Likes: 0
From: carmichael, ca
This from the posted diagnostic pdf...
I would imagine this would be the RPM measured on the dashboard tach.
When trying to diagnose hard start or no start issues a scan tool is
needed to check and monitor the ICP (Injection Control Pressure),
RPM (From the CMP) Vehicle Voltage during cranking and PW
(Pulse Width) signal.
1. RPM, minimum 100 rpm cranking speed (When warm it should be
over 180 rpm)
needed to check and monitor the ICP (Injection Control Pressure),
RPM (From the CMP) Vehicle Voltage during cranking and PW
(Pulse Width) signal.
1. RPM, minimum 100 rpm cranking speed (When warm it should be
over 180 rpm)
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Senior User
Joined: Jun 2013
Posts: 140
Likes: 0
From: Greenville, PA
That's what I thought but my tach doesn't register until the truck has started
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