90' 4runner hard to start when cold, acceleration is really slow
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90' 4runner hard to start when cold, acceleration is really slow
Just got this 90' toyota 4runner 4wd 3.0 automatic a week ago, it was good running for a couple days. Now I'm having trouble with it. It is having a hard time starting up when cold, before it start up quick and drove off quick aswell. Now when i get it started it's well below 800rpms when cold. When warm up its all good.
And another thing way driving it don't have power to go up hills and acceleration is really slow i mean slow too. Take o/d off still the same.
Now the motor got knocking sound and it does have oil too. But sound is not loud.
No smoke or no check engine light on
Please help
And another thing way driving it don't have power to go up hills and acceleration is really slow i mean slow too. Take o/d off still the same.
Now the motor got knocking sound and it does have oil too. But sound is not loud.
No smoke or no check engine light on
Please help
#2
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Compression and leak-down tests. Knocking is a bad sign, your valves are shimmed not adjustable like the four cylinder. You'll need to use a stethoscope to isolate the location of the noise to get an idea of what is going on.
Go thru the manual trouble shooting chart "incorrect first idle", and I don't recall exactly what the other one is "hard start" maybe.
Go thru the manual trouble shooting chart "incorrect first idle", and I don't recall exactly what the other one is "hard start" maybe.
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Idle is good when warm up, just hard to keep alive when i get it started.
I'll try to check the timing,but how do i get the codes. My dad said it sound like it misfiring. We work on honda and ford, but is the first toyota we ever got. I heard a lot good thing about the 4runner so i got for cheap well not cheap 1800.00. And i like to see it running good.
I'll try to check the timing,but how do i get the codes. My dad said it sound like it misfiring. We work on honda and ford, but is the first toyota we ever got. I heard a lot good thing about the 4runner so i got for cheap well not cheap 1800.00. And i like to see it running good.
#5
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I am having the same issue with the rough start up. Mine takes forever to start. From what I have heard, the 3.0 auto's are notorious for lacking power, have heard many people are dropping the 5-speed manuel in them and having success. My 3.0 w/ 5-speed pulls really well going up hills. Is it knocking, or is it pinging?
#7
Check your cold start injector and weight of your oil could cause a hard start and a knocking.
To heavy weight of an oil could cause the oil to not act as a bearing between the cranck and your rod and because it is so thick it could take a while for it to warm up and let everything run right.
Does your oil smell like fuel?
If so try replacing the cold start and see if that helps
To heavy weight of an oil could cause the oil to not act as a bearing between the cranck and your rod and because it is so thick it could take a while for it to warm up and let everything run right.
Does your oil smell like fuel?
If so try replacing the cold start and see if that helps
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#9
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Idle is good when warm up, just hard to keep alive when i get it started.
I'll try to check the timing,but how do i get the codes. My dad said it sound like it misfiring. We work on honda and ford, but is the first toyota we ever got. I heard a lot good thing about the 4runner so i got for cheap well not cheap 1800.00. And i like to see it running good.
I'll try to check the timing,but how do i get the codes. My dad said it sound like it misfiring. We work on honda and ford, but is the first toyota we ever got. I heard a lot good thing about the 4runner so i got for cheap well not cheap 1800.00. And i like to see it running good.
This is also the same place you need to jumper to set the timing.
As mentioned dilluted oil is a bad thing, but by the time you can smell the fuel build up its way past time to change it.
Another thing to check is the "Idle air control valve"/IACV, if this is stuck closed or blocked/dirty it won't breath right.
There is a troubleshooting flow chart in the manual under the engine section, just go step by step thru the "Incorrect first idle" or other relevent sections.
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