I’ve narrowed it down. I checked for spark, and I’m getting positive tests for each coil pack and plug #1-#6 The car turned over briefly with propane opened into the PCV just past the TB. So I’m assuming at this point it’s either my injectors or high pressure fuel pump.
@GlacierFrost300
Жыл бұрын
I’m getting frustrated. I have changed out the fuel pump and put all new spark plugs in but the car still won’t start. Same cranking, same attempts to want to turn over, but still no start.
@DIYLifeSkills
Жыл бұрын
Fuel delivery is still suspect. I would positively validate that fuel comes out through injectors. Bit dangerous to test this so have a fire extinguisher nearby and some rags to catch the fuel. Should only take few crank to see the fuel or not.
@GlacierFrost300
Жыл бұрын
Hello, may I get your input on my crank, no start issue for my Lexus GS 300?
@GlacierFrost300
Жыл бұрын
I’ve diagnosed a few things. Fuel pump is priming, fuel pressure is good, I THINK I hear the injectors receiving and spraying.
@GlacierFrost300
Жыл бұрын
I’ve cleaned MAF, removed throttle body and cleaned it out, removed mesh grating behind TB, cleaned out the intake plenum
@GlacierFrost300
Жыл бұрын
Car will not start even with carb cleaner shot into the brake booster vacuum inlet on the intake plenum
@GlacierFrost300
Жыл бұрын
No check engine codes as the battery has and was dead for a long time. Since then, I have a brand new 1 week old battery.
@GlacierFrost300
Жыл бұрын
I have added injector cleaner to fuel tank, assuming at best that the fuel is starting to go bad. So I hope the cleaner stabilized it a little to create proper combustion.
@GlacierFrost300
Жыл бұрын
I have videos uploaded to my feed. If you would kindly view them and use them as reference for any of your professional opinion. My next approach will be to diagnose spark
@DIYLifeSkills
Жыл бұрын
Im at work now but I’ll reply back tonight.
@GlacierFrost300
Жыл бұрын
@@DIYLifeSkills okay, thank you. I have uploaded videos to my account. I appreciate yo getting back to me.
@DIYLifeSkills
Жыл бұрын
I watched your videos. At one point, it almost started. As you know, it take fuel, air, and spark to start the engine. Engine is cranking so battery and starter is good. 6 fuel injectors never go out at once, so fuel pump/pressure needs to be confirmed positively. Also, I would check the spark plugs. If you have oil, coolant, water filled inside of spark plug hole, it ain't going to start. Also, check the that plugs do spark and check the gap. Just because plug sparks, if the gap is way off, it ain't going to start. Bad MAF & TB usually let's the car start, but it'll run rough and misfire, so I think MAF and TB is probably not the issue. Also, if car sat for a long time, the gas could have collected water and gone bad. How long did the car sit without starting? Was car starting and running prior to sitting a long time? How long have you had the car? Once I have more info, I can provide more things to check. Also take a look at 7:30 mark on this lawn mower I fixed. When gas sits for a long time, varnish builds up like. Varnish is thick honey like texture that is extremely sticky. If this happened, your fuel pump (under the rear seat) could be like this and need cleaning or replacement. Cars are designed to be used regularly and actually they cause more problem if left sitting a long time. kzitem.info/news/bejne/tqN3vHekiqGCoKg
@GlacierFrost300
Жыл бұрын
@@DIYLifeSkills the car started with propane at the pcv tonight. First time it actually turned over in 18 months. So I’m ASSUMING the spark plugs are not fouling and the gaps are fine. I checked for spark at the coil packs tonight using a spark tester. I removed each pack 1-6 and tested each one with crank individually. They all tested good and the coil packs sparked through.
@GlacierFrost300
Жыл бұрын
@@DIYLifeSkills oil and/or coolant were not visible in the spark plug tunnels, nor was there any odor. Some history on the car: The gasoline sitting in the tank is about 17 months old. Gasoline with 10% ethanol (as they are regulated and stretched here in Hawaii) It’s a 2006 Lexus GS 300 with 140k miles. Regular oil changes, filter changes, air filter changes, etc. No other fluid changes besides a coolant top off.
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