I have a 96 GT with some mild mods as below:
K&N Flitercharger
Offroad H-pipe with 2 chamber flowmasters
Superchip
Transco shifkit
Royal Purple Synthetic oil
The problem is that whenever cruising the engine starts to surge about 50-100 rpm every few seconds then stops for about a minute or so and does it some more. You can hear the surging in the engine more than you can see the tach move. It only does this with the A/C on too. It just started doing this about a couple weeks ago. The mods have been on there for a couple years now. I thought maybe the fuel filter might need changing, so I did that and no difference. The car has 86,000 miles but is in great shape and very well taken car of. Does anyone have any ideas on what might be causing this surging ? Any help is definitely appreciated as it's about to drive me crazy.
K&N Flitercharger
Offroad H-pipe with 2 chamber flowmasters
Superchip
Transco shifkit
Royal Purple Synthetic oil
The problem is that whenever cruising the engine starts to surge about 50-100 rpm every few seconds then stops for about a minute or so and does it some more. You can hear the surging in the engine more than you can see the tach move. It only does this with the A/C on too. It just started doing this about a couple weeks ago. The mods have been on there for a couple years now. I thought maybe the fuel filter might need changing, so I did that and no difference. The car has 86,000 miles but is in great shape and very well taken car of. Does anyone have any ideas on what might be causing this surging ? Any help is definitely appreciated as it's about to drive me crazy.