Delayed starting

Tiny
KEBSTRIKE
  • MEMBER
  • 2005 TOYOTA TUNDRA
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 94,000 MILES
Sirs: When initially starting, I rotate the key normally and nothing happens for about three to five seconds after releasing the key from full rotation. Then, on its own, the starter will engage and start the motor normally. I have another person try to start normally and I am checking the starter relay which I tap as it is attempting to start. Same problem, although it will start. I can hear the starter, which is under the intake manifold, make a loud click as if trying to engage. From what I have researched on the Internet, I assume that the contacts in the starter itself are not making. I checked the battery and it has 12.58 volts after sitting all night, and when the starter does engage, it spins the engine normally. I probably should change the starter relay first or at least check it out. But I think it is the starter contacts. I do greatly appreciate any heads up you might suggest. I am a mechanic for myself and not as a business. I am seventy three years old and I really do not want to change that starter if I do not have to. About the battery again, with the head lights on high beam, and when the engine does turn over, the lights hardly even dim, so I assume the battery is up to snuff. The relay seems to be stubborn and I cannot figure how to release it so I can test it, but as I wrote before, I can hear the starter making a loud click when I try to start it. The delay (approximately three to five seconds) is what makes me think it is the starter contacts internally, which from what I have read on the Internet can be replaced for about $20.00 once the starter is removed. Thanks for any advice.
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Monday, June 5th, 2017 AT 9:22 AM

3 Replies

Tiny
KEN
  • ADMIN
Hello,

The starter relay is controlled by the ECU. I would monitor the trigger wire for the relay using a small wire and a test light to see what is causing the delay. Here is a guide and a diagram to help you find the problem.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please run this test and get back to us so we can continue helping you.

Cheers, Ken
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Wednesday, June 7th, 2017 AT 1:09 PM
Tiny
KEBSTRIKE
  • MEMBER
  • 2005 TOYOTA TUNDRA
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 94,000 MILES
I turn the key normally to start the engine. It does nothing. I release the key to normal run position and wait approximately three to four seconds and it finally starts. I turn the headlights on bright and put a volt meter to the battery and it show 12 + volts. When it does engage to start, the lights do not go down hardly at all, but the volts drop as the starter does engage on it's own, and it always starts. I just cannot trust it to start when away. Any solutions, or have you ever heard of this problem before. Just to add. When the key is engaged normally, I can hear the solenoid in engage immediately, and then the three seconds lapses until the starter engages and starts the engine. Let me know what possible things it could be. I am going to take the battery to where I purchased it for a load test, although, it seems okay. Thanks Ken.
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Friday, June 9th, 2017 AT 6:36 PM (Merged)
Tiny
KEN
  • ADMIN
Hello :)

It sounds like it might be the starter motor itself, here is a guide that will show you how to test at the starter to see if it is getting signal, if so the starter is bad and replacement is required. I know the starter is under the intake so that's why I suggested the relay

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

The test is at the bottom of the guide.

Also this guide will give you the starter basics

https://www.2carpros.com/articles/how-to-replace-a-starter-motor

and intake

https://www.2carpros.com/articles/replace-intake-manifold-gasket

If you need to replace the starter here are the diagrams (below)

Please run this test and get back to us so we can continue helping you.

Cheers, Ken
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Friday, June 9th, 2017 AT 7:17 PM

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