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[randyshear]

Ok this issue isn't getting any better at all. I have changed the plugs, wires, cap & rotor, air filter, fuel filter, and added fuel system cleaner, and filled it up with 91 octane. It drives out great as long as you are accellerating, but as you are crusing, you feel it bog down, and the speedo starts going backwards, then the boost gauge goes up, then as I hit the gas again, it will surge forward, and take off. I have been checking vacuume hoses, and found one cracked that goes to the BOV, but it still holds pressure. Runs absolutely great as long as you are hitting the gas.. No CEL is on either.. What could it be?

[Gus Kelley]

Hey Randy! I wanna say it has to do with fuel somehow but lets go another direction. Does the car seem to coast easy? What I'm getting at is the possibility of bearings seizing up in the axles or trans, putting a load on the motor. Answer back.  Gus

[randyshear]

It coasts easily yes.. It does this in any gear if you hold it long enough. If you are giving it gas, it is fine, as soon as you are coasting for any length of time, it starts surging, and the boost goes up. I hit the gas, and she takes off again.. It is getting really aggrivating.. I'm about ready to sell it.. Except that the guy didnt give me a title for it.. I'm not happy with this car.. Thanks Gus for all your advice.

[Gostlrs]

did u put the B12 CHemtool in it yet?

you said car sat for 4 years...run a can of that through the tank..should help

[randyshear]

The B12 is going through it now.. Yes..

[Gostlrs]

it only too 1/2 can and one tank for my car to be back to normal...

i would maybe check the grounds for the fuel pump. clean them. it could be possible that when it is under a load the fuel flow is enough to keep it going but at idle (coasting) there could be a power loss

[randyshear]

I will start inspecting grounds tomorrow.. I may have my mobile home sold this weekend.. That's be $5K plus some $ I have saved.. I may just sell it, and buy another one.. Then do some customizing.. IDK yet.. This car is great, but I cant stand the surging, and poor fuel economy..

[darqueyes]

Could it be the ECU?

[randyshear]

I wish I knew.. I can't figure it out, and it is frusterating..

[Gus Kelley]

Hey Randy! Hears something to look at. you're losing speed so you give a little throttle and notice the boost come on but no power? Possibly check fuel filter and fuel pump. Also connection at gas tank and ground. They're under back seat.  Gus

[randyshear]

Gus can I actually remove my fuel pump from the back seat? You are correct.. If I darn near floor it, it will quit surging, and shoot off real quick.. But yes, even as it is losing speed, I slightly depress the gas some more, the boost goes up to 5-6psi, and still no power at all.. Even on the highway boost is present most of the time, because it is losing power, and boost goes up.. I'm lost.. Another thing.. It doesn't do it until after its been running 20+ minutes.. ?? Thank you Gus!

[coco-customs]

Also check all engine grounds. Theres a couple on a top engine/tranny bolt in front of the distributor in the thermostat area, check/clean that one especially.

[randyshear]

grounds it was. It runs perfect now. Fuel economy is great now!! Thanks everyone!

[Gostlrs]

ha ha...i was right..LOL

see now you will keep her

[Rocketman]

Now you need a RocketChip