1988 Gmc Idle Problem

By goonadams
November 17, 2007 in Ask A GM Technician

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goonadams

Posted November 17, 2007

my 88 gmc sierra lopes or surges when i start it it does it for a few seconds then the computer overrides and it gives me the code number33 so i replaced the map sensor and reset the comp. did not help. tried a few other things none helped it also smells like the engineis running rich. it is the 350

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  By 2022LtTbZ71 · Posted 17 minutes ago
  
  That stinks. I’m sitting on the side of the road right now with the same issue. Never had an issue before taking it in for the ground strap recall. Now I’m outside of warranty and they’ll probably want $200 just to diagnose what they already “fixed”.
- Passenger seat
  
  By jagabom (Esquire) · Posted 30 minutes ago
  
  I wonder kind of nuts and bolts they will come up with next? Jim
- The Peckish Synapse
  
  By OnTheReel · Posted 44 minutes ago
  
  “It should be recognized, however, that there becomes a point where fuel economy oils do not make much economic sense for the end consumer—we talk about a fuel saving of ~€100 compared to a risk of €1000 Euros if the oil is too thin and causes increased engine wear rates. However, the benefit of these oils accrues to the car manufacturers. If their vehicles can save 1–2% fuel by using a special fuel economy lubricant, then that OEM can drastically reduce the amount of fines they need to pay.” I liked this and the following paragraph as well but it’s really only touching the beginning of the benefits OEMs see from spec’ing these oils. After you factor in “out of warranty” service work and new car sales when these engines fail before their time, it’s a good racket for them. Just because you're paranoid doesn't mean they're not out to get you!
- The Peckish Synapse
  
  By Atlas · Posted 48 minutes ago
  
  Too much voodoo and snake oil. Time to go EV 😉
- The Peckish Synapse
  
  By Grumpy Bear · Posted 1 hour ago
  
  SwRI is who the big OEM's go to for this sort of thing. In the above the ring and bore plus valvetrain power is roughly the same for 0W30 to 0W16 but both fall apart in the 0W8. Overall the only looser is bearing friction which Stribeck told us decades ago. There is much to ponder in that reference material. That was a good find @OnTheReel
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