Intermittent fuel and starter

Tiny
WAGNERKELLEY
  • MEMBER
  • 1988 TOYOTA 4RUNNER
  • 2.4L
  • 4 CYL
  • 4WD
  • MANUAL
  • 355,000 MILES
I have all functions when ignition is turned on, but the starter sometimes will not turn over but usually will after several attempts, also intermittent fuel pump operation. I have changed the battery, starter cable and checked the wiring to the main fuses. Voltage Regulator problem or relays?
Sunday, December 30th, 2018 AT 6:07 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Intermittent starter operation is a common problem with an inexpensive fix. This is typical with the little silver Nippendenso starters. The clue is you'll hear a single, rather loud clunk from the starter each time you turn the ignition switch to "crank". This will get worse over the next weeks and months. You'll need to cycle the ignition switch more and more times before the starter will crank the engine.

The copper contacts are burned away inside the starter solenoid. Most people just replace the entire starter, but you can replace the contacts separately if you want to. The clinker is if you buy the parts from a starter / generator rebuilder shop, you have to know which style of contact you have. When you buy a repair kit, they come with four contacts. All of these starters in Toyota's and Chrysler's use the same "battery" contact, but they use one of three styles of "starter" contact. You use the second contact that matches what you took out. The kits are listed by the model years they are for, but there's no point in paying attention to that. All of these starters interchange among all the years and engine sizes, so the starter you have now might be from a different years if it has been replaced in the past.

When you buy the repair kit, you will have the two contacts you need, and two that aren't used. There's two kits for Chrysler products. You can use either one of them for your vehicle. The difference is the length of the shaft on the plunger that comes with them. Those plungers incorporate the copper contact disc that makes the electrical connection. Those rarely burn away and don't have to be replaced. If yours is badly arced away, you have to buy that plunger separately, and you can only get it from the dealer. The Toyota plunger is a lot longer than either of them for Chrysler's.
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Sunday, December 30th, 2018 AT 8:08 PM

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