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Post by yota22gurl on Dec 19, 2007 4:14:37 GMT -5
I just replaced my alternator in my truck and it did run for a few days, the last time i tried to get it to start..it gave me a lil problems but did start but had no power and kept wanting to stall out..now i cant even get it to start, i put gas in it so thats not my problem i was thinking either electrical problems or maybe my fuel pump? any ideas on how i can check without getting to expensive? It wants to turn over but it just wont... please help!! thank you for your time!
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jamride
Full Member
1 Beast Taco 2 go
Posts: 101
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Post by jamride on Dec 19, 2007 12:53:06 GMT -5
is the truck turning over at all?? If not, the old alternator more than likely killed a cell in the battery..Start by replacing that..Its about 55.00 dollars..Was that alternator new..If so, I hope that it wasn't advance or autozone..Ive gotten bad ones from the both of them..However have someone check the voltage output on the alternator..it should be right at 14Volts..Then change the fuel filter before the pump just cause its cheaper and if ur like me, then ur tryin to pinch every penny..Good Luck..=O)
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Post by yota22gurl on Dec 19, 2007 16:33:27 GMT -5
thank you for your quick reply..but yeah it is turning over every time just wont start it. A few times i actually thought it would go but nothing. Yeah the alternator was brand new. I got the alternator at Franks auto supermarket. The battery is brand new as well. But i cant check the voltage because i cant get the truck to start at all. i will try changing the filter and see and hopefully thats just the problem!
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Post by DeadlyPeace on Dec 19, 2007 20:04:06 GMT -5
Did you check to see if you're getting any spark? Pull a spark plug out and lay it on the top of a good ground while it's connected to the plug wire. Then crack the engine over to see if it has a good sparks.
If you got spark then I'd try the fuel filter.
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Post by yota22gurl on Dec 19, 2007 20:27:10 GMT -5
yeah it is getting good spark, so tomorrow i am gonna try seeing if maybe the spark plugs got flooded since it was smelling like gas real bad a few times..and if thats not the problem than i am going to try the fuel filter and pray its something simple like that.
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Post by Sean on Dec 19, 2007 20:54:00 GMT -5
Check your fuses. If they are all good then turn it over then get out and crack a fuel line, it should still have pressure. If there is no pressure in the line your fuel pump aint pumping. Try jumping power to the Fp pin in the diagnostics box next to the fuse box under the hood. This will bypass the entire circuit and unless your fuel pump is shot or there is an open going to it, it should give you pressure. If it works then you need to get out the multi meter or test light and start chasing down your problem. The circuit has only a few major components. Here is a basic schematic.
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Post by Sean on Dec 19, 2007 20:59:04 GMT -5
Oh yeah, if there is pressure in the line then your injectors might not be firing. To check those you need to disconnect a pig tail going to one of the injectors and connect each pin on the pig tail to a test light probe then have some one turn the motor over. If the light flashes your injectors are firing. If it doesnt, they arent. You cant use a digital multimeter for this test as it wont react fast enough to pick up the pulse. If your injectors arent firing the most likely cause is a bad ECM which would stand to reason given your alternator problems. Did you boost it by any chance? And if so is there any chance the booster cables were hooked up backwards even breifly. If so i would bet dollars to doughnuts your ECM is fried.
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Post by DeadlyPeace on Dec 20, 2007 12:42:14 GMT -5
Good thinking there Sean She didn't mention if she has fuel injection or not so a good question would be.....
Is your TOY fuel injected or carb?
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Post by DeadlyPeace on Dec 20, 2007 13:03:15 GMT -5
Never mind. Just did a little searching and found out she has a 3.0. Should be fuel injected.
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Post by Hoodlum on Dec 20, 2007 13:55:46 GMT -5
I had a simular problem but not quite as bad.Mine would start but it would stall out and take up to 5 minutes to run again.I did the same thing that Sean suggested and I had plenty of pressure.My friend Bill has the tool to check the connectors and they were fine they all would light up and pulsing.At the same time that we disconnected each injector to see if it changed how it was running.Well it turns out that the injectors themselves were shot.Actually only #2 was bad but the others didn't look much better. So you may want to have the injectors checked for flow rate and balance.That's what my problem tunred out to be.
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Post by yota22gurl on Dec 20, 2007 16:14:22 GMT -5
yeah its a 3.0 and fuel injected..Yeah i had the same problem when i tried it a few weeks ago..i had it running..and went to take it for a ride and it kept wanting to stall on me and than it would but i got it running again and went to put it in reverse and it had no power once so ever and kept jumping to want to stall. No matter how much i tried to give it gas i had no power...so i parked it and than waited til the next day and now i have nothing basically..just wanting to go but it just wont turn over, a guy named Kevin works at a garage and he told me to try taken my spark plugs out and drying them off because he said that since i always usually smell gas its probably flooded so I am going to try that first if not than i will try the injectors and work my way up from what you guys said about checking the pulses and stuff..hopefully one of these times i will find the problem..
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Post by yota22gurl on Dec 20, 2007 16:40:09 GMT -5
i know this is going to sound bad but i really dont know how to mess with the injectors or anything is there any way you could possibly help me out there? I usually just learn as i go but I really dont want to mess up anything else. I wont be able to check anything until tomorrow considering i dont have the tools where i am right now and its going to be getting dark but maybe if someone could possibly show a diagram or write me how to do it would be great! I appreciate all you guys help!! You guys are the best! ;D
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Post by Hoodlum on Dec 20, 2007 17:03:05 GMT -5
It could also be a TPS (throttle position sensor) That is located on the throttle body. Unfortunately I'm not able to post schematics and I'm def not qualified to give a detailed explanation. Hopefully Sean,Deadly or one of the others who have more knowledge and are much better with explanations than I am can help out.
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Post by yota22gurl on Dec 20, 2007 17:18:25 GMT -5
Yeah i understand all that. I am gonna get a head start on everything tomorrow because it gets dark way to fast anymore. I am gonna try taken the injectors off and clean then put them back in and maybe see if that could be the problem too..
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Post by BuckUrspace on Dec 23, 2007 12:07:09 GMT -5
I hate the winter for that reason by the time I get home it's dark so it's a pain to wotk on the yota. Goog luck!
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Post by yotanut7 on Dec 23, 2007 17:20:10 GMT -5
Do yourself a huge favor and get a repair manual. You will use it all the time and it can tell you how to do anything to your entire truck. My factory service manual has a lot of troubleshooting ideas for common problems. I had similar problems when I converted my 22r to efi. It turns out my TPS wasn't installed right and my circuit opening relay was bad.
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Post by Sean on Dec 23, 2007 23:31:50 GMT -5
Where are you at? Have you checked for line pressure yet? This is a simple thing. No use messing with injectors if you dont know if there is line pressure or not.
If you have and it does have pressure then you need to test to see if the injectors are firing like i said. There is only one injector you can get out without removing the upper intake manifold and that is cylinder #1(drivers side front). Pry the connector going to the injector off and take a test light. Like i said before stick each end of the probe in the socket and turn over the motor. If it fires and you have pressure then i dunno. To me it should start even if its flooding unless it flooded so bad it washed the cylinders out. If the injectors are the issue and need to be pulled you will have to pull the upper intake off and all related connections just to get at them. I didnt use a book to do mine as it is pretty straight foward. Once you have the manifold off the injectors pretty much just pull out.
As far as the TPS and circuit opening relay these things will only effect power to the pump and if you have used the basic trouble shooting steps i laid out for you already you should already have eliminated that as a problem before looking to your injectors.
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Post by Sean on Dec 23, 2007 23:49:35 GMT -5
Just a comment. There are reasons to follow trouble shooting steps. Its great to hear someone say that had a similar problem but going straight after that is a mistake. You could be wasting your time for nothing. You dont want pull off your manifold to find out your injectors were fine and all you had to do was change a fuse.
I have a friend call me years ago with a car that wouldnt start. I told him how to trouble shoot whether it was the battery, altenator or starter. He towed it to a shop and told them to replace the starter without even looking at it. His starter was fine he just needed a new battery but he ended up with a new starter for his troubles.
Even when something comes into the shop and you pretty much know what the problem is you verify before you start ripping shit apart. Motor comes in after losing 12 litres in a day we still do a stall test to see if it starts puking out the blow by tube before you start ripping into the engine to do an inframe. Motor sounds like its dropped a valve we still throw the computer on it and do a cylinder cut out test before taking off the valve cover. Even if you think you know the problem you want to verify it before you start throwing time and money into fixing it.
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Post by nothingface5384 on Dec 28, 2007 17:37:07 GMT -5
so hey. how you comming along girl? did you figure it out and i should have my truck back up after new years!
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Post by yota22gurl on Jan 9, 2008 21:51:44 GMT -5
hey sorry i got sick and couldnt really work on my truck but finally today i was able to get my truck running..it was really simple...the choke wasnt set up right and made my truck flood so i used ether and put that on my spark plugs to dry them up and i finally after a few times of trying got it to start right up!! i want to thank everyone that tried to help me and gave me all good advice and i know i will be able to use that sometime!!
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