97 ES300 Does not start
#1
Driver School Candidate
Thread Starter
Join Date: Apr 2013
Location: IL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
97 ES300 Does not start
Hello everyone,
Hope that someone has some spare time to give me a hand
Here is my situation. The night before my car worked great, no problems at all. The next day it didn't start.
It's a 97 ES300, it does crank up but doesn't start. The first thing I checked were the fuses and relays next to the battery. All checked out OK, I also swapped a few. Sprayed Deoxit on the connections and checked for continuity. All checked out OK.
I thought it was the fuel pump, went ahead and purchased a new one. Before I dunk it in the tank, I connected it to see if it would turn on. No luck. I grab the old fuel pump and supplied it with voltage, and it was working.
I've also checked the resistance on the crank shaft position sensor and it reads 1.8K ohms. According to the service manual, it falls in the range (Working sensor).
I'm at a lost. Not sure why the fuel pump is not priming/turning on. Any advice or guidance would be greatly appreciated.
As a side note, which would help all you experts .......I did put the old fuel pump back on and used a bench power supply to manually power it on. Heard it hummm, tried to start the vehicle, no luck.
Hope that someone has some spare time to give me a hand
Here is my situation. The night before my car worked great, no problems at all. The next day it didn't start.
It's a 97 ES300, it does crank up but doesn't start. The first thing I checked were the fuses and relays next to the battery. All checked out OK, I also swapped a few. Sprayed Deoxit on the connections and checked for continuity. All checked out OK.
I thought it was the fuel pump, went ahead and purchased a new one. Before I dunk it in the tank, I connected it to see if it would turn on. No luck. I grab the old fuel pump and supplied it with voltage, and it was working.
I've also checked the resistance on the crank shaft position sensor and it reads 1.8K ohms. According to the service manual, it falls in the range (Working sensor).
I'm at a lost. Not sure why the fuel pump is not priming/turning on. Any advice or guidance would be greatly appreciated.
As a side note, which would help all you experts .......I did put the old fuel pump back on and used a bench power supply to manually power it on. Heard it hummm, tried to start the vehicle, no luck.
#5
Driver School Candidate
Join Date: Apr 2013
Location: WI
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
If it crank but doesn't start, I am guessing the starter might be going out. Try hammering the starter a few times. Also test your battery too. Or have someone try to give you a jump to see if the car start.
#6
Lexus Test Driver
#7
Driver School Candidate
Thread Starter
Join Date: Apr 2013
Location: IL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Thank you everyone. I apologize for not replying sooner. Been a busy bee these past few days.
The vehicle has 216,000 miles. I've had the spark plugs and the timing belt replaced last year.
I've also tried hammering the starter but had no luck. I understand this is a difficult way to diagnose the vehicle. However, all your help and guidance allows me to evaluate the situation better.
Thank you for your help, I'm still having problems. If anyone else can elaborate, it would be greatly appreciate it. I'll report any findings or solutions.
The vehicle has 216,000 miles. I've had the spark plugs and the timing belt replaced last year.
I've also tried hammering the starter but had no luck. I understand this is a difficult way to diagnose the vehicle. However, all your help and guidance allows me to evaluate the situation better.
Thank you for your help, I'm still having problems. If anyone else can elaborate, it would be greatly appreciate it. I'll report any findings or solutions.
Trending Topics
#8
Driver School Candidate
Thread Starter
Join Date: Apr 2013
Location: IL
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
But here is the biggest problem. The fuel pump does not go on. Although, the relays are working and tested. The crankshaft position sensor is working.
#9
Lead Lap
iTrader: (1)
You already tested the fuel pump, but if you want you can do it again. Take a 12V power source, such as your battery, and hook it up to the fuel pump through the back seat. I can tell you which terminals to use, if you're interested. You can then manually prime the system, so that you know that there is fuel in the injectors. If the car still doesn't start and just keeps cranking, then you either have a timing or a spark issue. Bad timing will also throw off your compression, so it's a combination of both.
You can test for spark by removing one of the front coil packs along with the spark plug. Lay it on the engine with the coil pack plugged in, and have somebody turn the key, while you watch the spark plug.
One more thing I just thought of - no air going to the engine. Check your MAF sensor and see if it's plugged in. Also check your throttle body for any obstruction/malfunction.
Good luck.
Last edited by Hayk; 05-05-13 at 10:32 AM.
Thread
Thread Starter
Forum
Replies
Last Post
Circles
LS - 1st and 2nd Gen (1990-2000)
5
01-04-14 01:49 AM