Question about 1994 Hyundai Excel

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My 95 excel is getting too much fuel and choking on take off. Strangely enough it is worse with the more fuel it has, it actually runs better on empty. Have already replaced many parts. Could the problem be in the tank / fuel pump?

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You may be having a problem with the fuel pressure regulator causing to much fuel to be delivered to the motor here is a picture to help guide you to it. hope this helpsMy 95 excel is getting - onetufshoppe_128.gif

Posted on Mar 23, 2011

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If it runs better with the choke partially closed, its not getting enough gas which would point to the carb. or a vac leak.

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Hello, After my 1987 F-250, 7.5 L V-8, 4BBL sits for more than 12 hours I have to pump the accelerator anywhere from 20 to 50 times to get it to start. Once it starts it runs fine. I have replaced every...


That would be a Holley, probably model 4160 carb on it. You need to do a little detective work on this. You either need to adjust the choke or find out where the fuel is going after 12 hours.

First, when the engine is running check the Intake and Carburetor gaskets for vacuum leaks. Also spray by the Vacuum reserve canister (Like a coffee can) with either Choke cleaner or a water mist. Either way the RPM will change if you have a Vacuum leak. Fix the vacuum leak if you find one. The engine needs Vacuum to draw in the fuel for a cold start. There are vacuum ports with gaskets (Hidden until disassembled) where the Choke housing attaches to the main block of the Carburetor. A leak here will mess up the tiny piston inside the Choke. (Its under the Black cover and operates the stepup for cold starts).

The black choke dial should be set for 2 marks rich. You should not need excess force on the choke flap to unload it. The choke flap should maintain an opening about 2 credit cards thick measured between flap and carb housing. To get this space you bend the rod pushing the choke flap. This should help the choke work better.

If this does not help, on the next 12 hour interval check for fuel by taking off the strainer on the Carb inlet and remove the line from the carb to the pump. If the fuel line is dry you are losing the Prime to the pump. You must have either a bad pump or a hole in the fuel line from the tank.

Would like to know what you found. The Power pump inside the front bowl of your Holley has a number and you can go to a Holley website to see if it is correct for your truck. The fuel inside the front bowl of your Holley should be enough start the truck. Even if the bowl went dry overnight, the fuel pump would replenish the supply well before 20 to 50 pumps.

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I would check air flow sensor(MAF).
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Hi

There is a very good chance that driving your car with no coolant has caused at the very least a head gasket issue, if nothing worse (warped head or block etc...)

If there is an air lock in the cooling system and it sits around the coolant sensor then the gauge will register a low temperature because the air lock is not as hot as the actual coolant.

You need to get an independant report on the damage and then present it to the mechanic who carried out the initial belt and pump replacement, because the cost of the repair is down to him, be it a new head gasket or a replacement engine.

Very best regards

Geordie

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