Question about World Marketing of America Heater- Blue Flame Natural Gas
New egr,idle valve,plugs,and wires,first noticed problem soon after my daughter let it run out of gas.225,000 miles on car. Goodwrench told me number 5 cylinder,so I changed all the above.Still idles rough but as soon as you accelerate it runs very strong ,service engine soon light has been on ever since,approx 3,000 miles ago.
Have'nt changed coil yet?
Hold of on coil.
Check the fuel pressure. I had this problem in a restore, turned out to be fuel sock in fuel tank or filter.
Check for vac. leak. Soap water at intake manifold and throttle body, injectors.
Then check plug wires at idle in the dark for minor crossover,
Now you can ck coil but i bet it is ok.
PS Check the linkage stops
Hope this helps if so let me know Thanks Mike
Posted on Aug 30, 2017
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Posted on Jan 02, 2017
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Jan 11, 2018 | Cars & Trucks
Dec 14, 2012 | 1995 Chevrolet Astro
Here are the most common causes of idle surge, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake
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