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94 yota 4x4 cranking issues

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94 yota 4x4 cranking issues

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Old 07-07-2015, 08:09 AM
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94 yota 4x4 cranking issues

It will crank one minute then it may not crank. Yesterday I cranked it drove 6 miles down the road,killed it then it would not crank again until this morning. I thought the fuel pump had gone out until it cranked up this morning.Now I don't have a clue. Yesterday was not the first time to do this,but it has never taken this long to crank back up.It has a full tank of gas.Thanks for any help and I need help. It's about to drive me nuts
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Old 07-07-2015, 08:43 AM
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Won't crank, or won't start??

These words mean different things to most folks.

Crank merely means that the starter will turn the engine over.

Start means that the engine runs.

Which one is your issue??

Last edited by millball; 07-07-2015 at 09:53 AM.
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Old 07-07-2015, 12:47 PM
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Will not start then it might start. It might do fine for a week or two then won't start again. Do yall think it might be a relay of some kind.Ihave had in shops.one shop kept it for two months and it done fine then he went down the road and had to call his wrecker truck. He thought it was the main relay getting hot but changed it snd still does the same
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Old 07-07-2015, 04:16 PM
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So to be clear:
1) It cranks, meaning the starter turns the engine,
2) But you do not get the VROOM!

Originally Posted by redneck17 View Post
Ihave had in shops.one shop kept it for two months and it done fine then he went down the road and had to call his wrecker truck. He thought it was the main relay getting hot but changed it snd still does the same
Don't trust those shops. Many are good at guessing and replacing parts blindly, then charging you, and when problems come back, they keep you money.
Find schematic for your specific truck and figure it out with the help of members here.

Do yall think it might be a relay of some kind.
No way to tell unless someone posts a schematic.

Re: Main relay
22RE's do not have a "Main Relay" I wonder if the later models have this?

Last edited by RAD4Runner; 07-07-2015 at 04:18 PM.
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Old 07-08-2015, 06:31 AM
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The closest thing to a "main relay" that a 94 would have is the EFI relay, which powers up the I/O and memory section of the ECU and allows the engine to actually run. As RAD4Runner says, the best way to trouble shoot is with a $15 multimeter and a schematic.

For another $15, you can subscribe to the official toyota tech website for two days and download all of the FSM sections and full-color wiring diagrams for your truck. Although the free online FSM sites have wiring info, they're all in B&W. The full-color ones are much easier to read and find through. Best $15 I ever spent.
The website is here. www.techinfo.toyota.com
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Old 07-08-2015, 07:38 AM
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Thanks for the website, I will surely download the info.
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Old 07-09-2015, 08:10 PM
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We think we got the problem narrowed down to the MAF sensor. Going to order one tommorrow.
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Old 07-17-2015, 06:42 PM
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The Maf sensor was not the problem so back to the drawing board
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Old 07-17-2015, 07:44 PM
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trying to open the tech.info.toyota.com and it won't open any suggestions
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