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I have an 87 suburban 2 wheel drive with the 454 and turbo 400 trans. What should I expect for mileage. I currently get 7-8 mpg. Is this average?

I have an 87 suburban 2 wheel drive with the 454 and turbo 400 trans. What should I expect for mileage. I currently get 7-8 mpg. Is this average?

I keep blowing the ecm b fuse. Its an 87 suburban 454 fuel injected. Its seems ths fuse supplies the fuel to keep it running. When the fuse blows everything else works it just quits running, first while turning right only and now I cant go more than 10-20 feet before it blows. Fuel pump bad...

I have 87 sub 3/4 ton. My cruise control stopped working and my dome lights stay on the whole time so I had to remove the bulbs. Anybody think it might just be a fuse issue? I don't think its jamb switch for the lights becasue the idiot alarm still works with the keys in the ignition with the...

I have 87 truck. Got the ac charged and repalced hoses, belt and dryer. The air blows strong on the floor vent but the vents in the dash not so good. Is there a cable that controls this on the ac controls or is it an electric switch behind the controls. I changed my setting on ac to max...

So i got my truck smogged in the most strict state there is.It passed emmisions but not visual inspection. My main issues they said were a couple broken vacuum lines , check engine light coming on and off and my timing was set at 9deg tdc. They said it has to be 4. My question how to I change...

I Have 87 Suburban 2wd, 454 With Turbo 400. Will A 700r4 Bolt Into Its Place Or Any Modifications Need To Be Made. It Has The Efi Motor

Anyone Know What Horsepower And Torque Numbers Are On A 87 3/4 Ton Sub With The 7.4 Engine? Maybe Towing Capacities? 2WD

Anyone Know What Horsepower And Torque Numbers Are On A 87 3/4 Ton Sub With The 7.4 Engine? Maybe Towing Capacities? 2WD