Got a question and need an opinion - Toyota Nation Forum : Toyota Car and Truck Forums

toyotaman7166 · 07-17-2010, 12:29 AM

I have a 2000 Echo and was wondering what you guys thought about running sea-foam through it. I'm not sure whether it works or not but it is said to work very well when ran through the vaccum lines. Just wanted to get some opinions on it first. The car has 294,000 miles on it, it just seems like its got a missfire or something because I can feel the horsepower decrease and sometimes increase randomly when accelerating. I dont know if maybe it might have something to do with the VVT-i sensor or something. I heard you can take it off and clean it. I am a little uneasy about running seafoam through the motor with it having almost 300k miles on it and wanted to see what you guys thought.
Any Ideas?

Solace87 · 07-17-2010, 04:00 AM

As with anything it is always best to disassemble the part and clean it manually instead of using the miracle cures like seafoam and marvel mystery oil.
However if this is not an option seafoam is not a bad idea, just make sure you do it properly and follow all instructions.

As far as it fixing your randomly fluctuating power, that could be so many things.
MAF Sensor, Plugs, Coils, Alternator, Loose belt, Poor compression.

The best method is to start with the cheapest/easiest thing to check and work your way up.

Congrats on getting it to almost 300k

Great little cars.

jambo101 · 07-17-2010, 05:56 AM

May be time to put some new plugs and wires on the old girl.

Solace87 · 07-17-2010, 12:14 PM

Quote:

Originally Posted by jambo101

May be time to put some new plugs and wires on the old girl.

Agreed,
does the 2000 have wires though, or is it the coil on plug setup as well?

jambo101 · 07-19-2010, 08:15 PM

Quote:

Originally Posted by Solace87

Agreed,
does the 2000 have wires though, or is it the coil on plug setup as well?

Might have coils at the end of the wires,even so those wires can deteriorate over time and give poor performance,i'd replace them and the plugs.If they are pricey you may be able to lift a set off a low mileage car in a scrap yard..

Solace87 · 07-20-2010, 09:30 AM

Quote:

Originally Posted by jambo101

Might have coils at the end of the wires,even so those wires can deteriorate over time and give poor performance,i'd replace them and the plugs.If they are pricey you may be able to lift a set off a low mileage car in a scrap yard..

Excellent point. Although I cant find a part for that.
Seems like it would have to be a DIY thing but not a bad idea at all.
I have done that to a few high mileage cars (replaced all the wiring with fresh wiring) and it seemed to make some difference.

I would go to a sound shop and get some heavy duty wire and use that.

Stevo_Echohb05 · 07-20-2010, 01:38 PM

No wires, there are coils on each cylinder, you shouldn't have to change one unless it's gone bad. They either work or don't.

jambo101 · 07-23-2010, 06:57 AM

Quote:

Originally Posted by Stevo_Echohb05

No wires, there are coils on each cylinder, you shouldn't have to change one unless it's gone bad. They either work or don't.

Heres a pictorial on how its done
http://www.echodrivers.com/forum/vie...=15030&start=0

the_unliked · 07-27-2010, 10:40 AM

Let me know about the seafoam if you go through with it, I'm thinking about doing it on my 2000 Echo (I have about half the mileage though) in preparation for an emissions test. I cleaned my MAF, replaced my OCV (mine had been broken for a while unbeknownst to me) and that got rid of most my codes, just need to check wiring on my O2 sensors and then maybe run seafoam through it. I'd be interested to know which lines you used.

Thanks.