Question about 1988 Ford Econoline
88 Ford Econline E250 Trouble idling. Keeps stalling. Seems to run fair once it has been running for a while, but still bogs down when accelerating. The main problem is keeping it idling without stalling.
Sounds like a broke vacuum line somewhere check them all by removing the end of each vacuum line and inspecting the ends of the hoses replace as needed
Posted on Jul 15, 2009
Try replacing the fuel filter first. If yo already have do a top engine clean to get rid of carbon build up, during the year your truck was made they had throttle body and fuel injection which one do you have? If you have throttle body you need to buy top engine cleaner from GM to clean the top end and clean the throttle plate do this first as gum buildup will cause the plate to be open more than it should and would cause it to run rough. Next check the canister purge valve pinch off the hose with a pair of vice grips to see if it smooths out if it does then you know the purge valve needs to be replaced. Next check the EGR valve unbolt it and clean the pintal valve and make sure the vacuum port shaft moves freely lube the outer shaft with wd-40 **** on the port on the EGR valve and see if the valve opens, holding your tong on it to make sure it stays open. This is assuming you don't have a vacuum gage. Replace and use red hi temp silicone on the gasket to replace it back on. next take a can of starting fluid and spray it around the intake manifold does it smooth out? if so tighten the intake manifold. If you don't find a leak then pull the power booster line off the brake booster pull out the valve and blow on the valve. Does it allow ait to flow two ways? if yes replace it if not put a bolt in the hose and start and see if it makes a difference, if not it is fine replace the hose if you have a leak and it does make it run better, and next test fuel pressure if it is low replace fuel pump. and filter sock. you did not mention if it was diesel if it is there are other things to test. next check spark plugs and spark plug wires and rotor and cap if they are bad replace them, need more info then post what you find here so I can tell you what else to check.
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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