08-12-2017, 11:21 AM | #1 |
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Location: Whitecourt AB
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Bogging and dies
Hey guys. I just got my 78 c10 with a 5.3 lm7 and a 4l60e running and driving. I drove it around the block for an initial shake down. It seemed sort of boggy and seemed to lag. Was low on year old fuel so I figured it was that. Went to start it the next day and drive to the fuel station when it died in the driveway. Got the tank filled with fresh 91 octane. Started and idled better. Still lacking power once in gear and any load is applied bogs down to a stall out if I don't give it any gas... Any ideas!?
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08-12-2017, 03:33 PM | #2 |
Post Whore
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Location: Alabama
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Re: Bogging and dies
did you change the fuel filter? what about fuel pressure..have you checked that?
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08-12-2017, 10:15 PM | #3 | |
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08-12-2017, 11:53 PM | #4 |
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Re: Bogging and dies
might want to go ahead and change that filter..especially since you were pumping old gas thru it..better safe than sorry
low trans fluid won't give the issues you had |
08-13-2017, 12:57 AM | #5 |
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08-13-2017, 01:00 AM | #6 |
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Re: Bogging and dies
I will have to throw a new filter in then. Your right trans fluid didn't have anything to do with it since it's back. I jumped the gun when I thought it went away... I have been told to check the throttle body isn't dirty on both sides of the butterfly. Or a bad o2 sensor possibly. My scan tool isn't throwing any o2 codes at me. Or any codes at all for that matter. I guess I'll start by cleaning the t/b and go from there...
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08-13-2017, 09:10 AM | #7 |
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Join Date: May 2015
Location: Alabama
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Re: Bogging and dies
might put some injector cleaner in your tank as well..
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08-13-2017, 06:50 PM | #8 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Bogging and dies
Check fuel pressure under some load as well, and see if it drops. When demand rises, the pump should be keeping up. If the pressured drops, then you might have a restriction, bad reg, or issue with the pump.
And as always, check for vacuum and exhaust leaks on any new swap. The ECM can account for a pretty decent leak on either side at idle, but under load from the trans sometimes they will bog. If your not running a full exhaust, then be aware that the o2's might be seeing clean air and throwing your trims way off without triggering codes. Is this a stock engine, or is there motor work involved. If its cammed, you might need your tuner to bump up the load correction on the idle.
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08-14-2017, 12:13 AM | #9 | |
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08-14-2017, 12:15 AM | #10 |
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