Question about 1991 Lexus LS 400

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My lexus ls400 cranks starts and cuts right off,I replaced crank sensor and fuel pump.what may be the next thing?

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Colin Stickland

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Factory immobiliser

Posted on Oct 20, 2009

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Where is crank shaft sensor location on 95 lexus sc300 please help


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1995 lexus ls400 cranks but won't start.Its getting gas in the gas line and spark,just won't crank


sadly we have no idea if it cranks or not . you have sadi both
not cranking will be starter related .
not starting if it has fuel no doubt is timing problem

Jan 10, 2016 | Lexus Cars & Trucks

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1995 Lexus LS400. Car was left in garage for two weeks while we were on vacation. Upon return it won't start. Engine does turn over. Replaced fuel pump in attempt to troubleshoot. Mechanic ha


I assume the pump was replaced because it was getting power but no fuel pressure ?
Are you still not getting fuel pressure ?
Spark to the plugs ?
Normal compression when cranking the engine ?
Security light not staying on ?

Feb 09, 2013 | 1995 Lexus LS 400

1 Answer

Lexus LS400 cranks but will not stars


CHECK FOR SPARK AND FUEL.IF ALL IS GOOD A BAD COLD START VALVE WILL CAUSE COLD ENGINE START UP PROBLEMS COLD START VALVE DOES SAME JOB AS ENGINE COOLANT TEMPERATURE SENSOR IT ENRICHEN FUEL SYSTEM FOR COLD START UPS. DO LITTLE TUNE UP MAKE SURE SPARK PLUGS AND WIRES GOOD, REPLACE DISTRIBUTOR CAP AND ROTOR,CHECK IGNITION TIMING, REPLACE AIR FILTER AND FUEL FILTER. IF CAR GETTING FUEL AND SPARK.CAR TIMING BELT COULD HAVE JUMP TIMING IF TIMING BELT NEVER BEEN SERVICED OR REPLACED.

Oct 24, 2011 | 1993 Lexus Ls 400

1 Answer

My lexus ls400 cranks over but wont start also the car goes dead


this could be a starter or the enigtion swicth yes if you crank the key to long it will kill the battery.

May 05, 2010 | 1990 Lexus LS 400

2 Answers

'90 lexus es250 wont start..


Get it diagnosed correctly. This is why we have 20,000 dollars of diagnostic equipment. If we were to guess I would of suggested the fuel pump.

This defineatly was not an alternator issue or a starter issue or battery by what your symptoms were.

You could have a failed computer or crank sensor or ignition module. Only testing will tell you what is not at fault and what is.

Jan 12, 2010 | 1990 Lexus ES 250

2 Answers

Lexus ls400 cuts out


I have the exact same car that had the exact same problem. I looked high and low for months trying to figure out the problem. I changed the fuel pump, coil packs, spark plug wires, plugs, throtle position sensor and nothing fixed it. It would crank fine, but when it warmed up it would spit and sputter like it was running out of gas. It would shut off and would not crank back until it cooled off. The computers in those cars have something wrong with them causing it to starve the car for fuel. I sent my computer to Auto Computer Exchange in Davie Fl. They repogramed the computer with a one year warenty for $305. I put it in the car and It is fixed. One other thing that might happen with this car is the insturment cluster will go out. These cars are known for that. If this happens just go on Ebay and buy a rebuilt one for less than $100 it wil have a lifetime gurantee. good luck Ed

Sep 23, 2009 | 1991 Lexus LS 400

1 Answer

1991 lexus ls400 doesn't accelerate


Clean, inspect and, or, Replace your crank sensor or, crank sensor wiring A loose crank sensor bracket or, a start relay has caused this before

Jun 15, 2009 | 1991 Lexus LS 400

2 Answers

1993 LEXUS ES300 FLOODING AND FUEL VAPOR OUT EXHAUST SYSTEM 1997 lexus ls400 is hard to crank.i have to turn it over 3-5 timesbefore it starts. it is getting fire and checked the plugs and are wet with...


ok, i tell you 3 possible causes.
check maf sensor connection , check fuel pressure regulator (max press fuel in rail 40 psi) , check engine compression (min 95 psi ) if less this cause spark plugs wet and not start

Apr 17, 2009 | 1997 Lexus LS 400

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