93 Lexus ES300 won't start

Tiny
TVANG
  • MEMBER
  • 1993 LEXUS ES 300
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 170 MILES
Have a 1993 lexus es300 that doesn't start. Changed spark plugs, battery, and fuel pump. Have good compression, spark, and fuel. Timing belt is good, starters good, engine is cranking but won't turn over. Fuses are all good. Can't seem to figure out what the problem is.
Saturday, December 18th, 2010 AT 7:56 PM

5 Replies

Tiny
TVANG
  • MEMBER
  • 3 POSTS
I've tried all of what you've said already and still nothing. I've had 3 mechanics to check my car already and same lead. That's why I'm here to get a 4th opinion and turns out to get the same results. Could it be anything else?
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Sunday, December 19th, 2010 AT 5:57 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its cranking over and will not start-you are missing one of this in order for the engine to start- Compression, Fuel and Spark- double checked it-
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Sunday, December 19th, 2010 AT 7:22 AM
Tiny
TVANG
  • MEMBER
  • 3 POSTS
Fuel's coming through from fuel line, spark is there, and compression is good. All that is there and still no start. That's why its taking me a week now to try and get this car started.
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Sunday, December 19th, 2010 AT 3:34 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if the injectors are pulsing providing fuel into the cylinders
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Sunday, December 19th, 2010 AT 7:43 PM
Tiny
HARRY P
  • MECHANIC
  • 2,295 POSTS
I know this thread is late, but if you haven't solved the problem yet, check the crankshaft position sensor. The car's PCM uses it's signal to time the sparks. If there's no signal or the signal is wrong somehow, then the spark timing will be off and the car won't run. I had this same problem with a 94. After several mechanics tried replacing the fuel pump, ignitor, injectors, coils/wires, timing belt, etc etc, I stumbled on an OBDII plug hiding in the fuse box. The scanner readout showed a failed crankshaft position sensor. Replaced it, and the car has worked fine since then.
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Tuesday, March 12th, 2013 AT 5:50 PM

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