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power loss at high speed on acceleration 200 1984

posted by someone claiming to be vince rose on Fri Nov 17 04:31 CST 2000 [RELATED]

This past weekend I used STP fuel injector cleaner(safe for o2 and cat)

at the same time I blew my rad(stupid plastic). The top fitting cracked

right off spraying coolant all over the engine compartment.....

I managed to get a used rad for $50.00 cdn.(free in USA)...

Since all this on Sunday I have been experiencing a loss of power when

I am at 70 to 90 MPH and try to accelerate(live in Toronto have to drive high speed to survive)to pass.... If I ease up on the throttle my power

returns..This problem is periodic and seems to happen after driving

35 miles or so all highway....

One more thing when I was checking for cracked vacuum lines I placed my

hand under the intake to check to see if the flame trap was seated

correctly and I hit the Wires around the cold start injector..this caused

the engine idle to increase dramatically had to keep wigling my hand around until the idle slowed down. I do not have a tac to see if the idle

has returned to 900 RPM.. not sure if it every was ... seems to still

be high even after closing the idle adjust screw all the way...

Any comments are appreciated

Thanks to all in advance.....

SPECS... B23F LH 2.0 212K miles

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Re: power loss at high speed on acceleration 200 1984

posted by someone claiming to be nate on Sat Nov 18 12:53 CST 2000 [RELATED]

I'd put a small amount of cash on a fuel delivery problem.

Fuel filter first. if that does help, check fuel delivery lines, pressure regulator, vacuum to regulator, pumps, intank pickup screen, injector spray patterns, and if all else fails try to get a fuel pressure gauge to make sure there is proper pressure.

When you gas it, the regulator closes up and raises pressure... If something is restricted, the pressure doesnt go up and the engine leans out.. bad power loss.

Could be your air meter also, but i'm 99% certain it's not since you'd notice it badly at lower speeds and idle will usually get fairly lumpy.

-Nate

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Re: power loss at high speed on acceleration 200 1984

posted by someone claiming to be w.t. bostick on Fri Nov 17 19:01 CST 2000 [RELATED]

sounds like your fuel filter needs replaced.

btw after loosing your radiator you might want to change your timming belt.

my last one only lasted 6 months(5 months after my radiator burst) they tell me the anti-freeze ate the belt.

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Re: power loss at high speed on acceleration 200 1984

posted by someone claiming to be Tony Hoffman on Fri Nov 17 07:10 CST 2000 [RELATED]

I know you are relating the lack of 'GO' on your recent radiator problem (who ever came up with the idea of plastic for radiators anyway) But I wonder if your fuel filter isn't getting loaded. adding the injector cleaner has been known to do two things: loosen up all the varnish and crap in the gas tank thus loading up your filter and 2. causes havoc with spark plugs. they lose their insulation for some reason. It has happened twice to me on my motorcycle (a 4 stroke) I'm chasing one problem only to have it combined with intermitent plugs.

I can't see your (now) florescent green/yellow engine being harmed by antifreeze hitting it.

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