Question about Lexus LS 400
Water pump has been replaced,new timing belt spark plugs,wires
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Posted on Jan 02, 2017
check timing belt timing on the cam gear and crank gear. if timing belt has 60000 miles or more. if they dont break first. they stretch enough jump out of time.
Posted on Apr 09, 2009
I HAD THE SAME PROBLEM WITH MY CAR. 93 LS 400. THAT WOULD BE YOUR FUEL FILTER OR THE FUEL PUMP GOING BAD. TRY CHANGING THE FILTER FIRST. THE DEALER TRIED TO CHARGE ME $980 TO CHANGE FUEL PUMP.
Posted on Jul 23, 2009
Are you sure the new belt didn't jump time? How was the belt tensioner when you replaced yhe belt? Did your water pump leak onto or into your crank sensor?Are you sure you have proper fuel pressure?When you replaced the timing belt, did you make sure to find top dead center on cylinder 1 ? Just lining up the timing marks may not have worked if this is indeed what you did.If you had the crankshaft rotated 180 degrees, your motor would be trying to fire on the exhaust stroke, instead of the compression stroke. To find T.D.C. disconnect your battery,rotate your crankshaft until the piston that is marked #1 in your firing order is at the top of its stroke, this can be accomplished by carefully inserting a wooden or plastic dowel into the sparkplug hole of cylinder#1. The dowel will rise with the piston and at the point where it starts to fall will be T.D.C. Now your timing marks should line up,and you will then be on the compression stroke. good luck! hope this helps
Posted on Feb 14, 2010
yes it will be a little more than just the timing belt but it will save money if the pump goes bad later-when the pump leaks it will leak onto the timing belt and need replaced again
so yes i would do them at the same time
Posted on Feb 17, 2010
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