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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

92 Toyota Pick up, Hard Starting
Q: I am the owner of a '92 Toyota Pick-up with 80,000 miles. Recently I have replaced the fuel sending unit, fuel filter, distributor cap, rotor, ignition coil and plugs. My problem is that the truck sometimes turns over but takes a long time to start. When it does start it runs fine and will idle all day. I have no fuel problem as I am getting lots into the fuel rail. I replaced the coil on the advice of a Toyota mechanic. He felt the old one was not generating enough spark. This still did not solve my periodic problem. My question is: Could the igniter control box located on the top of the ignition coil be the problem? I really am looking for some help with this and do not want to pay the mechanic for any more than I have to............Paul

A: First, I would not rule out fuel as a problem. Just because you have lots of fuel available doesn't mean it's getting to the engine. If I'm not mistaken your Toyota has a component called a cold start fuel injector. The cold start fuel injector provides additional fuel, over and above the other fuel injectors, for start-up when the engine is cold. The cold start fuel injector relies on two items to activate it. A temperature sensitive thermal switch and an electrical signal when the engine is being cranked over for starting. A problem with the cold start injector, thermal switch or wiring can cause difficulty when starting a cold engine, extended crank time. A closer inspection of what it takes to start your engine should be done before replacing any more parts.

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