Ricklv2 Posted April 17, 2010 Share Posted April 17, 2010 This truck was just assigned to me when it came back from the Mack dealer. They say it just had a partial rebuild that replaced the sleaves and rods and all that stuff.I don't have the details on the truck other than it's a late 1990s tractor with a 6 cylender diesal.The truck runs real smooth and sounds good but it can't go up hills and takes for ever in each gear to get up to speed on the highway. It will do 75+ mph but it takes forever to get there.Our mechanic is a nice guy but hasn't got a clue as to what's wrong. I'm sure they wouldn't have spent the money they did on it if the first 410k miles were put on as slow as the 500 miles I put on it yesterday. Droppng a gear going up about a 3 or 4% grade with 8,000 lbs of freight in the trailer just ain't right.Does anyone have any suggestions on what I can tell our mechanic to check or adjust to help me go up hills with a little less embarrasment. Thank you.Rick Quote Link to comment Share on other sites More sharing options...
fjh Posted April 17, 2010 Share Posted April 17, 2010 This truck was just assigned to me when it came back from the Mack dealer. They say it just had a partial rebuild that replaced the sleaves and rods and all that stuff.I don't have the details on the truck other than it's a late 1990s tractor with a 6 cylender diesal.The truck runs real smooth and sounds good but it can't go up hills and takes for ever in each gear to get up to speed on the highway. It will do 75+ mph but it takes forever to get there.Our mechanic is a nice guy but hasn't got a clue as to what's wrong. I'm sure they wouldn't have spent the money they did on it if the first 410k miles were put on as slow as the 500 miles I put on it yesterday. Droppng a gear going up about a 3 or 4% grade with 8,000 lbs of freight in the trailer just ain't right.Does anyone have any suggestions on what I can tell our mechanic to check or adjust to help me go up hills with a little less embarrasment. Thank you.RickWelcome to the site!You need to provide more info!the horse power of the truckIs the truck electronic or manual fuel pumplate 90's is to vague to many changes between years!any symtoms it may have helps loads-black smoke no smoke pyro and boost readings!-these all help in reguards to repairs Quote Link to comment Share on other sites More sharing options...
Ricklv2 Posted April 17, 2010 Author Share Posted April 17, 2010 Thanks for the welcome fjh. I just got into this truck yesterday and when I was done late last night all I wanted to do is get into me little Neon and go up hills fast to get home.I'll have to read the info if available in the truck's paperwork.I just thought there would be a general idea of what cold be wrong like weak tubo or fuel pump preasure adjust or somthing off the top of someone's head type of answer that would be linked to the rebuild.I'll have to get back here Monday or Tuesday with more information.Thanks for the reply. Rick Quote Link to comment Share on other sites More sharing options...
fjh Posted April 17, 2010 Share Posted April 17, 2010 Thanks for the welcome fjh. I just got into this truck yesterday and when I was done late last night all I wanted to do is get into me little Neon and go up hills fast to get home.I'll have to read the info if available in the truck's paperwork.I just thought there would be a general idea of what cold be wrong like weak tubo or fuel pump preasure adjust or somthing off the top of someone's head type of answer that would be linked to the rebuild.I'll have to get back here Monday or Tuesday with more information.Thanks for the reply. RickWith out good info comments are usless until you have good info!As I mentioned things change from year to year horse power to horse power. Quote Link to comment Share on other sites More sharing options...
truckboy Posted July 19, 2010 Share Posted July 19, 2010 Time for a service,. Quote Mack trucks | Cheap used cars Link to comment Share on other sites More sharing options...
mikesheldon Posted July 20, 2010 Share Posted July 20, 2010 you may have a blown head gasket Quote Ford trucks Link to comment Share on other sites More sharing options...
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