I have a 1992 Ford Explorer. For the past seven months or so, it has been missing, backfiring, and has been sluggish. However, it will be fine one day and do all of these weird things the next. I took it to a Ford dealer shop and they ran a diagnostic test on it and replaced the mass flow sensor. That didn't correct the problem. Any ideas on what could be causing it to backfire, miss, etc...?
2007-03-29 07:23:16 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Fuel supply problem.
Either fuel pump, fuel filter, or water in the fuel.
2007-03-29 07:28:50 · answer #1 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋
Burnt valves, sticking injectors, bad ignition...lots of things. Replacing the MAF didn't make much sense. There's no way it could have caused those problems. Best stay away from those monkeys. Try a compression check to see if the valves are going. If they are, that truck has had a good 15 year run and is probably ready to retire. Otherwise, you're just going to have to find a shop that can do something besides replace parts at random until you get tired of giving them money.
One easy thing to fix that quits on Explorers a lot is the fuel pressure regulator. Take the vacuum line to the regulator off and see if there's gas in it. When the vacuum diaphragms in the regulators go bad you get a ton of gas going down the vacuum line into the manifold.
2007-03-29 09:26:25 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋
Have the fuel pressure checked, as it seems to be getting too much fuel at times causing the excess to get into the exhaust and causing an explosion (backfire) There is a fuel pressure regulator that could be going out. when was the last time you changed the fuel filter? when you had your last SMOG check what were the values? show these to a good mechanic. Run some fuel system cleaner through to clean the injectors if you do not do this at least annually.
2007-03-29 07:41:16 · answer #3 · answered by gary o 7 · 1⤊ 0⤋
First do Spark Plugs and Wires.
Then the distributor cap and rotor (if it has a distributor and not coils).
If you're still having problems take it to a mechanic and request that they test the spark on each cylinder. That will narrow down what is not firing. If you have ignition coils instead of a distributor it's going to be a bad coil. Replace the coil (junkyard parts work well in this case) and you'll probably be fine.
2007-03-29 07:33:18 · answer #4 · answered by Ferret 4 · 1⤊ 0⤋
it is not rocket technological understanding. I found out to force a stick while i became 10. truly somebody can take you out for a a million/2 hour and instruct you the thank you to try this. determine? Relative? Co-worker? Classmate? Ya have been given $10? placed a freakin' advert on craigslist "somebody instruct me to force a handbook"
2016-10-01 21:47:18 · answer #5 · answered by ? 4 · 0⤊ 0⤋