Mid to Hi RPM hesitation?

Silvio914 · 07-20-2003, 08:27 PM

This just recently started happening. It started out only doing it in 5th at around 4k rpm and it would do it for a sec and if you let off the gas and step on it again it would be fine but a little while later it would do it again.

Tonight it started doing it through all the gears from the mid rpm range at WOT.

Anyone have any idea what I should check. The car has a new fuel pump, coil, plugs, wires, valves were adjusted 2 weeks ago.

Thanks,
Silvio

M. Hendrix · 07-20-2003, 08:39 PM

I would start with the new work, check it all out, make sure ya know..

Cap and rotor... hmmm.. hesitation, you mean complete *wait state* and not fluttering? Cavitating fuel pump?

Recently means 2 weeks?

I love your car.

M

greenwood · greenwood's Garage

This happens to my 2.0 every now and then. Turns out the my throttle switch is worn and dirt gets in it. If I clean the tracks off with an eraser the hesitation will go away. One of these days I'll just buy a new switch.

07-21-2003, 06:49 AM

If you run out of options check the screen on the bottom of the gas tank. When it starts to get plugged up it will supply enough gas for normal driving but starve the engine when you put your foot in it.

Silvio914 · 07-21-2003, 07:34 AM

Quote:

Originally posted by M. Hendrix
I would start with the new work, check it all out, make sure ya know..

Cap and rotor... hmmm.. hesitation, you mean complete *wait state* and not fluttering? Cavitating fuel pump?

Recently means 2 weeks?

I love your car.

M

I haven't installed a new cap and rotor yet, I'm doing that today after class.

I'm going to use this example to kinda explain it....It feels almost like a rev limiter.

Recently means about 3 weeks.

Silvio

Silvio914 · 07-21-2003, 07:53 AM

Quote:

Originally posted by drew365
If you run out of options check the screen on the bottom of the gas tank. When it starts to get plugged up it will supply enough gas for normal driving but starve the engine when you put your foot in it.

That problem was all ready fixed. The gas tank was rotting on the inside and filled the screen up solid with junk. The car would get just enough gas to start and wouldn't hold an idle, you had to have your foot on the gas so it wouldn't shut off. It would drive for a while and it then would shut off. I'd then have to wait a few hours for enough gas to soak through all the junk in the screen to start it again.

What a pain that experience was, I was 16, my 1st car and I was being left stranded everyday cuz of this problem. I thought it was a bad fuel pump so thats when I changed it but that didn't fix the problem. So after that I went and bought Mustang 5.0 LX and started drag racing. The 914 sat for 5 years and my dad sold his motorcycle so he wanted to use the 914 as his weekend toy so he found the rotting gas tank problem and clogged screen and had the tank fixed and a new screen put in.

Now the car runs great minus the problem I'm having now.

Silvio914 · 07-21-2003, 07:57 AM

Quote:

Originally posted by M. Hendrix

I love your car.

M

Thanks, Which car? I have three.

Kevin Powers · 07-21-2003, 08:30 AM

during the service was the fuel filter replaced? that's a problem eliminated inexspensively.

kevin

Silvio914 · 07-24-2003, 02:34 PM

It seems to only do it once the car has warmed up and been driven for like 20-30 minutes nonstop. Anytime before that it runs perfect through every gear all the way up to 5k when I shift.

Silvio