cfd511

Hello all I'm in the market and currently looking at a 2008 mack granite with a mp8 engine in it . I went to look at it this past Sunday and it was about 20 degrees. The truck hadn't been started in a few months but took a lot of effort to start it. Once it was running it sounded good and ran fine. I let the truck get up to operating temp and pulled the oil fill cap and sip stick to look for blow by. Absolutely nothing which is good. I was Always taught to check the radiator expansion tank for pressure. The truck was at operating temp and there was pressure behind the cap and some squirted out. I also noticed the overflow side also had coolant in it. Is this normal . I assume there should be some pressure at operating temp but im unsure . I do also recall a bubble here and there in the expansion tank. The coolant was also right at the cap for the expansion tank. Once again no blow by or any smoke that I could see. The truck as also deleted and computer tuned. truck has 230,000 miles on it.

So the truck doesnt shack at all. It a up and down . Feels like there no weight on front end . Drives fine when no trailer on the back. Only gets real scary with volvo 160 on a lowboy. King pin is dead center of tandem i believe . Will confirm in am . I def feel the motor mount . Feels like engine gunna twist out of truck.

So today was the first day towing a low boy on my 92 superliner with 350. I noticed a front end bounce while cruising 45-50 mph. it was bad enough that it made me uncomfortable to say the least.it got new king pins. I did notice the motor is moving a lot so I think I have a broken engine mount. its going to mechanic in the am. any idea so I make sure he looks at everything.

Currently have a superliner with a 350 in it. The equipment I have keeps getting bigger and bigger and im looking to get into something with more power a little newer. The superliner is great around town but we are traveling now. What used truck would you purchase now.

Will post all that in a few days

Has the 350 in it . Would the vin number be any use to you . Like I said its all original and im not super knowledgeable on these .

I havent thought about it to much . It got all new brakes,cans and rubber. Was hoping more of a trade for another Road worthy truck with more power.

Anyone have the needed parts to put dual pipes on a superliner .

I have a mack super-liner with 89000 original miles. Just got back from paint . Im thinking about getting into another mack with more power or peter built . Ive been towing alot more and just need more power . Im would def be interested in a trade for something different . I just want it to go to a mack guy who will cherish it. Im the third owner . Truck originally built for a guy in pa. Ps has a wetline kit for lowboy and dump trailer

awesome thanks guys , will call in the morning.

Just bought a superliner with 87,000 miles in awesome shape. truck is early 90's with 350. Looking to do hub pilot swap on the fronts from the spokes and put floaters. Any help with part numbers would help.

thank you all, I was the plugs under dash were dirty.

Update , mehcanic thought the turbo inlet tube was collapsing , disconnected tub all together and truck ran well so he put a hard air inlet tub in . fast forward to today and we are stuck on the side of the road. Truck starts , idles at 900 rpm , no throttle Response and when you turn the ket off, the truck starts to shut down and when it almost shuts off it it goes back to running then tried to shit off again

I have a 2000 mack rd 688 . While driving the truck will lose all throttle response and shit down. If i feather the peddle i can get it to come back to life if i leave in gear or i can pull out of gear , turn switch off and start again and it first right up. I drove for a little while yeaterday and nothing happened . My worker was driving and running loads today and it happened . Seems to happen randomly or when gets hot. Also when the truck shuts down while your driving , a huge cloud of black smoke comes out from stack . Any ideas , im thinking maybe the ecu

2000 mack rd 688