Question about Lexus LS 400

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My 1993 lexus ls400 is skipping and smoking please help me

Water pump has been replaced,new timing belt spark plugs,wires

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  • Travis Fuller Apr 04, 2012

    was the timing set right even if off by a little bit it can mess up. also the rings might be going out what color is the smoke

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  • Master
  • 6,468 Answers

Are you sure you didn't blow a head gasket?is it whit smoke?

Posted on Apr 05, 2012

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 1993 lexus sc300 fuel pump

need to know exactly where the fuel pump relay is

Posted on Aug 03, 2010

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SOURCE: Mazda 323 Has spark, fuel, timing belt ok, does not want to start

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

  • 1 Answer

SOURCE: 1993 Lexus LS400 acceleration stalls or surges

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

  • 38 Answers

SOURCE: I have a 91 300zx non turbo won't start

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

jrock1094
  • 158 Answers

SOURCE: lexus rx300 should i replace water pump at same

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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