loss of power/ bucking in rain

[MisterSheep]

Originally Posted by humfrz

Well now, I think that would be a good idea.

As for "throwing in" a set of plugs ......

(back in the day, that was a 5 minute job ..... even if you were slow ....)


humfrz

My GF has a 66 bronco (Inline 6).. I know exactly what you mean.

[Ultramaroon]

Originally Posted by humfrz

You spoke of driving in the rain ..... I recall the vacuum powered windshield wipers that STOPPED when you were passing another vehicle on a two lane road

Wait, you had a windshield? So spoiled.

[Tcoat]

Originally Posted by humfrz

You spoke of driving in the rain ..... I recall the vacuum powered windshield wipers that STOPPED when you were passing another vehicle on a two lane road (for the younger ones ..... since the wipers were vacuum powered, they would stop under heave acceleration, because the engine was using all of the vacuum).

Yep, that’s when we had to “drive the car” …… single piston master brake cylinder; bias ply tires; 6-volt headlights; lousy shocks; 85 HP (on a cool night) and no power steering or brakes.

NO NANNIES …… just driving skill ……

humfrz needs a nap because he is .......

Hey, I wrote almost that exact rant in another thread! Plagiarist. Oh wait we drove the same sort of cars that is all. Nevermind.


The vacuum wipers did make up for stopping by going like hell as soon as you took you foot off the gas. That is until they flung off into the netherworld. Looked funny lurching down the road to keep the wipers going.

[Tcoat]

Originally Posted by fasteddy

I understand it will be challenging, but I have a great set of tools, patience and experience.



I have a Jackson Racing Supercharger. The air filter is close to the stock location. It did not appear wet.

When this happened I was pulling out of the gas station on the way to the freeway. It happened under moderately heavy acceleration at about 4,000 rpm's.

It was quite upsetting because it felt like the traction control kicking in, but like a total cut of power. Then the power kicked back in and lurched the car. It was very violent.

Maybe I picked up some oil on my tires as the gas station?

I may as well do the plugs anyways. I think they are only good for 60,000 miles

Pat

Gonna throw in my 2 cents in support of Hums water in the gas theory. What you described nails my past experiences with that situation. Also explains why the problem lessoned and then disappeared even in the rain. A bad plug will not give total power drop and then just get better again.

[Deepseadiver]

Same thing on my recent road trip. I hit a heavy batch of rain close to an hour of straight down pour! I had to slow down to 60 MPH and afterwards I had the same problem you have described. It had me worried, because it felt like a boost/fuel cut, or a really bad hick-up on heavy acceleration. I took it easy and finished my trip. Let the car dry out for a day and the problem never came back. Vortech Supercharged with around 35,000 miles on the clock.

[Tcoat]

Originally Posted by Deepseadiver

Same thing on my recent road trip. I hit a heavy batch of rain close to an hour of straight down pour! I had to slow down to 60 MPH and afterwards I had the same problem you have described. It had me worried, because it felt like a boost/fuel cut, or a really bad hick-up on heavy acceleration. I took it easy and finished my trip. Let the car dry out for a day and the problem never came back. Vortech Supercharged with around 35,000 miles on the clock.

Hmmmmm. Belt gets wet and slips maybe?

[fasteddy]

Originally Posted by Deepseadiver

Same thing on my recent road trip. I hit a heavy batch of rain close to an hour of straight down pour! I had to slow down to 60 MPH and afterwards I had the same problem you have described. It had me worried, because it felt like a boost/fuel cut, or a really bad hick-up on heavy acceleration. I took it easy and finished my trip. Let the car dry out for a day and the problem never came back. Vortech Supercharged with around 35,000 miles on the clock.

That is exactly what happened to me!

Originally Posted by Tcoat

Hmmmmm. Belt gets wet and slips maybe?

I thought about that too. I asked Jackson Racing and they said that was not possible, there was way too much tension on the belt for it to slip even if it was wet. The engine did not look wet to me.

Pat

[Tcoat]

Originally Posted by fasteddy

That is exactly what happened to me!



I thought about that too. I asked Jackson Racing and they said that was not possible, there was way too much tension on the belt for it to slip even if it was wet. The engine did not look wet to me.

Pat

Ya, it seemed too easy but needed to remove it as a variable.

[mashal]

Check your MAF, when this happened to me it was the MAF, it was drenched.. Water caused a short and car went full limp mode, once it was dry, car was fine

Sent from my A0001 using Tapatalk

[fasteddy]

Originally Posted by mashal

Check your MAF, when this happened to me it was the MAF, it was drenched.. Water caused a short and car went full limp mode, once it was dry, car was fine

Sent from my A0001 using Tapatalk

This does seem possible, although that is a long way for the water/moisture to go. It would have to make it through the supercharger and inter-cooler piping to get to the maf.

No way to know after it dries out.

Pat

[empower-auto]

Originally Posted by fasteddy

This does seem possible, although that is a long way for the water/moisture to go. It would have to make it through the supercharger and inter-cooler piping to get to the maf.

No way to know after it dries out.

Pat

what? no. your MAF is directly after your airbox. you're thinking MAP which is on top of your intake manifold

[Ultramaroon]

Originally Posted by empower-auto

what? no. your MAF is directly after your airbox. you're thinking MAP which is on top of your intake manifold

No. He's boosted. Still, it was my thinking when I asked about the CAI. There's no place for the water to pool so it would get sucked through.

[empower-auto]

Jesus. Everyone boosted should be tuned on speed density. It works fantastic on these cars.

[fasteddy]

Update: answer found!

I believe I figured out what the issue was.I actually have de-modded my car and have sold it since then. I did not realize this until I was boxing up my supercharger when I sold it. I saw water stains inside the pipe going from the intercooler to the engine, like water had gotten that far and was running back down.

The car acted as thought it would if the MAF was wet, and I guess the maf was wet. It seems unlikely that the water would have gone though the air filter, super charger, intercooler and all of the pipe to get to the maf, but that is what I now believe happened.