My '90 ls had been running horrible for a while and my gas mileage was like 180-200 on a tank of gas. I took it to my shop to check my timing and probably end up doing the belt because it was missing a lot of teeth. Tthey said they had advanced as much as the distributor would let it and it was still 8 degrees retarded from factory specs. THey say the belt must have slipped, which is understandable, considering it’s shape. So I switch my timing belt out and My car runs better than it ever had getting almost 300mpg daily driver. So i then wanted to clean out my injectors, used two bottles of duralube fuel injector cleaner, and after those went through, I put in bosch platinum +4 and now I feel like I have less power again and I’m down to 240-250 mpg on a tank, any ideas,ANYONE?
Re: Lost Mpg?!?!?
Originally posted by F25oneR
Tthey said they had advanced as much as the distributor would let it and it was still 8 degrees retarded from factory specs. THey say the belt must have slipped, which is understandable, considering it’s shape.
I suspect they or someone else fudged on the installation of the crank pulley. How did they measure the ignition timing?
Regards,
Oz
Last summer My car was having all kinds of problems and eventually broke down and would not start. It ended up being a cracked distributor. When the dealership did that, they also did the coil, cap & rotor. When I got the car back from them, It ran, but it still ran like SHIZZZ! So I pretty much deal with my car running like that for over a year untill I couldn’t take it any more. I took it to the shop, They pretty much just did the timing belt and when I got it back, my car was running like a champ. I beleive them when they say how bad the timing was because my car felt so hesitant, like I was holding the brake at the same time, untill I hit like 5000 rpm’s and then if felt like my car had boost and just took up like I just gained 30 hp or something. Now that the TIMING BELT was replace and the timing was where it was supposed to be, it was running better than ever.I was running the car pretty hard just because I was so excited to have my quick teg back, BUt nothing over the ordinary that we all don’t do. Then I ran the two bottles of Dura-Lube fuel system cleaner, changed out the plugs to BOsche Platinum +4 after that and its started have problems again ever since. THat’s kind of the history of my car since I started having problems spring of 2001. Oh, and also OZ, My clutch is starting to slip now when I get on it, especially at low RPM’s. What CLUTCH would you reccomend and best place/cheapest price to get it. Also, I wanted to get cams and cam gears (titanium dual valve springs/retainers), fairly agressive(don’t want to spend the big money on turbo’s or engine build-up). What and where would you reccomend again. Thanks for you HELP again OZ> TYSON