2000 Trooper and spark knock
edrhathaway
03-18-2005, 02:54 PM
As many may already know, I have the infamous burning oil problem...which I'm going to try and correct with an engine soak as read on the forum. But I'm also noticing that I can't really run 87 gas in the truck. it spark knocks so much it's scary. I can usually run 89, or a mix between 93 and 87.
Anyone have any ideas on what is causing this? I have to believe that 87 should be adequate.
Thx,
Ed
Anyone have any ideas on what is causing this? I have to believe that 87 should be adequate.
Thx,
Ed
amigo-2k
03-18-2005, 03:47 PM
It's due to carbon build up. I had it on my 2000 3.2 Amigo too starting at about 15k. After a couple rounds of Chevron techron it went away. It use to come back a couple of times years, but since I started using sea foam before every oil change I have no pinging and I can run 87 octane.
pinging is due to carbon build up in the combustion camber.
http://isuzufaq.ibctech.ca/#faq3
pinging is due to carbon build up in the combustion camber.
http://isuzufaq.ibctech.ca/#faq3
dramey_2004
03-18-2005, 04:30 PM
Hey this is caused by spark knock the best top engine cleaner is water belive it or nottake your mass air flow off and your intake start the truck up and spray water in the throatle body using a spray bottle trust me on this one. I am a mechanic. Let me know if you have any questions
rodeo02
03-18-2005, 11:21 PM
Hey this is caused by spark knock the best top engine cleaner is water belive it or nottake your mass air flow off and your intake start the truck up and spray water in the throatle body using a spray bottle trust me on this one. I am a mechanic. Let me know if you have any questions
True, water mist will "steam clean" your top end nicely, but I would not recommend this procedure for late model isuzu 3.2/3.5's The common chamber is designed such that you will wind-up with most of the water laying in the bottom of the common chamber. Also if you try to work the throttle by hand (from the throttle body) with the engine running, you can royally screw up the throttle by wire system (2000+ isuzu's if I remember correctly) Real costly error(s).
G/luck
Joel
True, water mist will "steam clean" your top end nicely, but I would not recommend this procedure for late model isuzu 3.2/3.5's The common chamber is designed such that you will wind-up with most of the water laying in the bottom of the common chamber. Also if you try to work the throttle by hand (from the throttle body) with the engine running, you can royally screw up the throttle by wire system (2000+ isuzu's if I remember correctly) Real costly error(s).
G/luck
Joel
edrhathaway
03-21-2005, 03:02 PM
Is it ok to move the throttle when not running? I hope so, as I have done this many many times to clean that EGR tube. PLEASE TELL ME IT'S OK!!!!!!!!!!
True, water mist will "steam clean" your top end nicely, but I would not recommend this procedure for late model isuzu 3.2/3.5's The common chamber is designed such that you will wind-up with most of the water laying in the bottom of the common chamber. Also if you try to work the throttle by hand (from the throttle body) with the engine running, you can royally screw up the throttle by wire system (2000+ isuzu's if I remember correctly) Real costly error(s).
G/luck
Joel
True, water mist will "steam clean" your top end nicely, but I would not recommend this procedure for late model isuzu 3.2/3.5's The common chamber is designed such that you will wind-up with most of the water laying in the bottom of the common chamber. Also if you try to work the throttle by hand (from the throttle body) with the engine running, you can royally screw up the throttle by wire system (2000+ isuzu's if I remember correctly) Real costly error(s).
G/luck
Joel
amigo-2k
03-21-2005, 03:16 PM
I've always don't mine while it is not running.
I just push open the butterfly with a pcv pipe (or the likes) and just jam it open to spray out and scrub out the the EGR port.
No worries.
I just push open the butterfly with a pcv pipe (or the likes) and just jam it open to spray out and scrub out the the EGR port.
No worries.
amigo-2k
03-21-2005, 03:40 PM
I've always don't mine while it is not running.
I just push open the butterfly with a pcv pipe (or the likes) and just jam it open to spray out and scrub out the the EGR port.
No worries.
I just push open the butterfly with a pcv pipe (or the likes) and just jam it open to spray out and scrub out the the EGR port.
No worries.
rodeo02
03-21-2005, 06:23 PM
Is it ok to move the throttle when not running? I hope so, as I have done this many many times to clean that EGR tube. PLEASE TELL ME IT'S OK!!!!!!!!!!
Yes, it's ok to work the throttle by hand when the engine is off, key off. Rest at ease!
G/luck
Joel
Yes, it's ok to work the throttle by hand when the engine is off, key off. Rest at ease!
G/luck
Joel
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