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Post by bluemountainmobber on May 6, 2009 22:22:54 GMT -5
i rebuilt my engine this last year because of a timing chain problem. after i rebuilt it i had trouble getting it timed where it needed to be. the distibutor is set all they way advanced because that is the only way it will run with any power at all. it runs perfectly fine other than when i stomp on it it slowly gain speeds and then bamb it takes off. ive thought it could be a computer problem, problem in the wiring harness, or something in my efi intake. ive takin it to our local toyota dealer to even mess with it and they are completely up in arms with no idea. any one have any idea what could be the problem?
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Post by whomadewho on May 7, 2009 19:08:37 GMT -5
Almost sounds like either the distributor needs to be moved - the timing gears are not lined up correct or the igniter or the plug going to it is bad. You should not have to advance the distributor all the way to get the engine to run. Are you using a jumper wire on terminals - TE1 AND EI when you set the timing? A starting point would be - Pull #1 PLUG - bring the timing mark to TDC - Pull the distibutor cap and make sure the rotor is lined up right. One tooth off is going to make a difference. You may want to consider removing the rocker arm cover to make sure the cam gear is in the correct spot. If the timing is not set correct that = the timing is not advancing which = poor performance. TRY hooking up a timing light- with the timing set correct -Rev the engine up slightly and see if the timing advances. If you cant get the timing to advance - Have the ignitor tested and check the plug going to it. The IGNITOR sends a message to the computer which controls the spark advance. The IGNITOR is that little box located on top of the coil. BE CAREFUL HANDLING THE IGNITOR,THAT LITTLE BOX COST OVER TWO HUNDRED DOLLARS. GOOG LUCK
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Post by bluemountainmobber on May 7, 2009 23:04:55 GMT -5
everything you said there has been done, even with the ignitor box... the toyota machanic told me how to do it with a paper clip in both inserts. the weird thing is the timing is dead nuts on and is perfectly set TDC. thats why it is leaving us dumbfounded. the toyota dealership here hooked up everything to a computer and they said everything is fine... its irritating. do you thing the ignitor box could be bad? would that make the difference? o also take note that i rolled the truck before into a pond so would the water/mud make a difference on it?
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Post by whomadewho on May 8, 2009 13:37:05 GMT -5
You stated you rolled the truck in a pond - How long ago? Was the cab submerged? Over a period of time -not overnight - when the wiring and electronics are exposed to water corrosion can develop ie- ground wires,connectors ect. When the igniter is bad.the engine will start and run fine.but during accleration, the engine will gain speed slowly,but you will not experience a sudden surge in speed. Did you check to see if there are any codes stored in the Diagnostic system?
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Post by bluemountainmobber on May 8, 2009 15:21:48 GMT -5
You stated you rolled the truck in a pond - How long ago? Was the cab submerged? Over a period of time -not overnight - when the wiring and electronics are exposed to water corrosion can develop ie- ground wires,connectors ect. When the igniter is bad.the engine will start and run fine.but during accleration, the engine will gain speed slowly,but you will not experience a sudden surge in speed. Did you check to see if there are any codes stored in the Diagnostic system? i rolled it about 2 years ago and the engine ran fine until about a year ago when i had to rebuild it. after the rebuild it has never been the same. about 6 months ago they were able to get codes out of the rig. but im begginning to think that it is all electrical problems... possible wiring harness, computer or diagnostics box. |
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Post by josejuan1012 on Jul 9, 2009 9:27:20 GMT -5
hey mi dads runner had the same problem and we took it to some Toyota only mechanic and he fixed it for us weired thing he was a kid i believe he said he was 17 this was like 3 years ago
I don't remember but i think we got charged like 3.5 bills
after we got it back its response was amazing its power was like if it was new again he doesn't work out side any more i think he got hired by Toyota
any ways he told me he adjusted the tps hes after time it wares out and needs to be adjusted or replaced completely.
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Post by ironman33 on Oct 11, 2010 22:31:44 GMT -5
how would you go about adjusting the tps???
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Post by clim84 on Nov 3, 2010 6:59:45 GMT -5
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