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View Full Version : newb!! 1990 MM 3.0 4x4


ch1mp
03-27-2014, 07:38 PM
my cousin just gave me a MM with a rusted tank. I am currently cleaning it out with muriatic acid and gonna install a new pump. after that maybe some wranglers and we'll see what happens!! Maybe some pics later :)
royster
03-27-2014, 08:33 PM
Good to have you, Ch1mp, and great avatar.
BradMph
03-28-2014, 08:07 PM
Welcome to the forum. There seems to be a lot of issues with fuel tanks doing exactly what yours did, rust. Be sure to get it as clean as possible and probably a great primer and some under coating over it to protect it for the next 20+ years. Replace the rubber lines as well, which I'm sure your going to do. Pumps can be found at RockAuto.com or your neighborhood auto parts stores.

Enjoy the forum :)
ch1mp
04-01-2014, 07:19 PM
got the tank cleaned, installed w/new pump from high flow fuel systems, jumped it off and it runs like a champ :)
ch1mp
09-26-2014, 07:15 PM
ok... finally got the title for the truck and went to go get it changed over. The truck starts up and idles great. I get to the main road and it has no power and tries to die when i give it gas, so i turn around and have to limp home at about 5mph anything over and it wants to cut out. I drove it today because I got off of work early and it runs until it gets warm and then does the same thing. I cut the cat off and drive it to my friends house(about 2 miles) and it runs great again. On the way home it runs great then starts the same thing but I can go about 45.....I need help
ch1mp
09-26-2014, 07:38 PM
ok... finally got the title for the truck and went to go get it changed over. The truck starts up and idles great. I get to the main road and it has no power and tries to die when i give it gas, so i turn around and have to limp home at about 5mph anything over and it wants to cut out. I drove it today because I got off of work early and it runs until it gets warm and then does the same thing. I cut the cat off and drive it to my friends house(about 2 miles) and it runs great again. On the way home it runs great then starts the same thing but I can go about 45.....I need help
lush90
09-26-2014, 11:57 PM
Did you replace your fuel filter?
lush90
09-26-2014, 11:58 PM
Also, if it was sitting for a while the fuel injectors may need to be cleaned.
ch1mp
09-27-2014, 10:06 AM
ok just got the fuel filter and some injector cleaner.hopefully cleaner will work cause i can't do 30bucks an injector to get them cleaned right now :( anyways I'll post n update....and thanks for the advise