When I had this problem, it turned out to be my fuel pump...
need local help...
- Thread starter 84shortyota
- Start date
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- #123
It is a newer fuel pump, though that doesn't necessarily mean anything. I did jump the fp circuit and it made no difference.
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- #124
We are shooting for 11 Saturday morning.
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- #125
See y'all in the morning if you can make it!
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- #126
Big thanks to @fourtrax today! Got a few things figured out and did a compression test. 1-5 were in the 130-140ish range. #6 is dead. Not sure if it's valve related or something deeper yet. I'm going to pull the valve cover and investigate further this week.
I'm sorry I had to bail on you guys. Sarah's birthday party was today at the house.
Interesting. Did you do a wet and dry compression test? That would tell you quite quickly if it's the bottom end or the top end.
There was some vaccum as the piston was going down, I didn't feel anything on the compression stroke I think the exhaust valve stuck open
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- #130
What would the wet test consist of?
putting a few drops of oil in the cylinder and running the compression test again. then repeat on remaining cylinders. if the pressure goes up after oil, then it is usually slop in the piston/rings. if no change then it is valves.
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- #132
I'm just going to limp it around til I can afford a long block. I'm not setup or prepared for a rebuild at the house. It's not worth it to pull the head and have the valves checked/adjusted if it's a stuck valve. The compression #'s were at the lower end of the range so I think a new motor is in order.
If the problem is in the head why would you get a longblock ?
Thats $6k minimum i believe new.
Used its a crapshoot what you are gonna get and likely best to rebuild or minimum inspect and refresh before install.
I just wouldnt want your little problem to grow into bigger problems but i believe both beno and trollhole ran around on 5 cylinders for a while.
Thats $6k minimum i believe new.
Used its a crapshoot what you are gonna get and likely best to rebuild or minimum inspect and refresh before install.
I just wouldnt want your little problem to grow into bigger problems but i believe both beno and trollhole ran around on 5 cylinders for a while.
Yup.
Pull off the PCV and see how much blow-by you're getting. If it isn't blowing out fairly hard you can be pretty sure the lower end is doing okay. For a rebuilt head, including gaskets, you're looking at sub-$1000.
Toyota does not provide long block support. Never have.
I pulled my engine a few years back (About 30 k ago) and took the long block to a machine shop, I picked up the rebuilt long block about 2 week later with a 1 year/ 10k mile Warranty for less then 2.5 k and that included Toyota pistons and head gasket.
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- #137
I thought about a head rebuild, but I'm not 100% sure that's my problem and I'd be pissed if a year later I'd just have to end up rebuilding the motor anyway. I can get rebuilt longblocks in the 3k range and could rebuild mine for probably the same or a little less. Id prefer to pull mine and use it as a core to minimize downtime. The compression numbers on my motor weren't great and at 313k that's to be expected. This truck wasn't maintained very well from what I've seen. I'd rather have the piece of mind of a "new" motor. I don't want to have to worry about it for a long time, or ever.
- Thread starter
- #139
Saving pennies for a rebuild. Might take a little while.
