whiteout1990 Posted September 14, 2014 Share Posted September 14, 2014 I just replaced my water pump, timing belt, thermostat and radiator in my 1990 lexus ls400 due to overheating problem. Drove it to oreillys just fine, let it run for a few minutes then turned it off. I then started it pulled out onto the main road and not even a minute later the car just shut off. I pulled over and tried to start it and it cranked up and turned over for about a second and just shut back off. Tried again and it started so I tried to drive it and it shut right back off 15 seconds later. Now everytime it just cranks, acts like it's turning over then shuts off. It was running fine after I had replaced everything so I know it's not the timing or spark plugs, need help please. Quote Link to comment Share on other sites More sharing options...
sha4000 Posted September 15, 2014 Share Posted September 15, 2014 Well if it's not the timing then you have to make sure all hoses and connectors are on correctly and the battery has a proper charge. Quote Link to comment Share on other sites More sharing options...
Daniel091 Posted September 16, 2014 Share Posted September 16, 2014 Make sure your wiring harnesses for crank and cam sensors are not rubbing the accessory belt. Quote Link to comment Share on other sites More sharing options...
whiteout1990 Posted September 16, 2014 Author Share Posted September 16, 2014 Would it not be something to do with fuel pump? It's not getting enough gas Quote Link to comment Share on other sites More sharing options...
landar Posted September 18, 2014 Share Posted September 18, 2014 It could be the fuel pump but since you just did the timing belt, check all of the connectors that you removed and make sure that they are all properly seated together. If you think it is fuel, spray some starter fluid into the intake snout when trying to start and if it does, you have a fuel issue. If it does not help, then it is most likely electrical. 1 Quote Link to comment Share on other sites More sharing options...
whiteout1990 Posted September 19, 2014 Author Share Posted September 19, 2014 Thanks for all the information guys. I looked all day and replaced the fuel filter just because it was looking real dirty, but it ended up being the fuel pump relay.. so alot cheaper fix then I thought. Quote Link to comment Share on other sites More sharing options...
landar Posted September 21, 2014 Share Posted September 21, 2014 Good to know Dwight. Glad you found the root cause and got her back on the road. Thanks for posting the fix. Quote Link to comment Share on other sites More sharing options...
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