Question about 2005 Lexus LS400

1 Answer

Just did a tune up on my ls400 but still will not crank i know it a igition problem what else could it be besides spark plug and wires

Posted by on

  • collegepark_ Nov 06, 2009

    the car got a good kick just want ignite

  • gord storey
    gord storey May 11, 2010

    I'm confused.... when you turn the key , does the engine not turn over ? Or does it turn over but not fire and run. Two different problems with two different lists of solutions.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 477 Answers

Thanks for the clarification. Engine needs 3 things to run. Compression , fuel , spark.
It's turning over so you have compression.
Check a couple of spark plug wires for spark.
If you got spark , most likely no fuel.

Was it running before the "tune up" ?

Posted on Nov 06, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Hello Tom,I had the plugs, wires and coil replaced, but no improvements. Can it be a sensor, or the cam nsor? Im going nuts, and broke.


We all know that feeling, especially the broke part. Stop throwing parts at it. You need a good diagnosis. For "cranks, no start" check fuel pressure and spark. For no spark, use a wiring diagram and understand what is involved. The crank and cam sensors are usually part of the mix. The computer (pcm) uses these sensors to determine spark timing, and often injector timing. Also besides coil, plugs, and wires, and the sensors mentioned, don't forget how the ignition system controls the coils- the ignition control module, or ICM. This little part is often the cause of no spark. But, everything can and should be tested first.

Nov 29, 2017 | Cars & Trucks

1 Answer

Will not start


cranks but will not start still , after 40 days?
does it have spark to all 4 cylinders.
that be first.
and if rotor still spins cranking
if you fooled with spark plug wires, or tuned it up./
old post answered.

Mar 04, 2014 | 1994 Geo Metro

2 Answers

Nissan 1400 pick up is not starting how do you set the points for igition


Check for spark to the spark plugs during the no start period. If you do not have spark the crank sensor in the distributor is a common failure in these.

Oct 20, 2013 | 2006 Nissan 1400 Bakkie

1 Answer

Hi i have a ls400 it will turn over but wont start. it might not be getting spark to the spark plugs. i checked 3 of 8 of them and they are NOT getting spark. ive had the car for a week but was running...


You don't say what year you have so I'm not sure if you have the older version with dual distributors, up until 1997 or 1998 above with coil on plug. If you have a 1998+ , there is no chance that all 8 coils failed so I would look elsewhere. In my professional opinion, I would focus on the crank sensor. If the ECM is not getting the crank signal, it doesn't know where the #1 cylinder is so it will not fire.

Oct 19, 2013 | Cars & Trucks

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

2006 beetle no start no spark or injector pulse. Replaced crank sensor , no luck. Fuel pump runs.


No spark no injector pulse your saying you check pulse. With the key in the igition is there a key sign flashing and does the key have a battery for alarm. For the fuel pump to operate it need a crank signal so you got the crank correct but no spark so the crank works. Can you check the ignition for pulse you know how it is shape its curved on one side staight on the other side well the curve side and at that end is the ground after that on is the control from ECM. If you can check pulse there then we can go to the ECM . What I am trying to get at is this your alarm is the only thing beside the ECM that can cause this.

Apr 24, 2011 | 2006 Volkswagen New Beetle

1 Answer

Rough idle and poor start ups in cold weather what


You will need to make sure that the health of the car is good. Make sure that the fuel , fuel filter and the delivery is good.
Secondly check the spark intensity, check the plugs, the wires and trigger for the coils. make sure all electrical points are tight and clean so as the starter cranks without any lagging.
Finally check the plug gaps, the timing and fuel tuning.( hope the valve settings are good)

Feb 24, 2011 | 1993 Buick Regal

1 Answer

Cranks but won't start.


It should be tune up as replace the cap, rotor, spark plugs, wires, PCV vale and Mass flow meter. so many problem when this happen.

good luck!

Nov 19, 2009 | 2000 Chevrolet Silverado 1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

300 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexus Experts

Marvin
Marvin

Level 3 Expert

84966 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Lexus Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...