Backfiring like crazy!!!
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Junior User
Joined: Dec 2003
Posts: 61
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From: canada
Backfiring like crazy!!!
This is Hammerhead again.1990/Aerostar Van/3L Automatic/
I replaced the plugs and checked the wires. Replaced one. The number 4 plug still has to be done but it is a monster to get at. I replaced the Distributor cap and Rotor. Added some Transmission "Gunk" to stop the pensive acceleration(possible right?). Took it out yesterday. Started and stopped about 4 times at different places. After I let it run at an idle for a bit it then ran worse. It started to backfire on acceleration and run rough at all speeds. Mostly when I was giving it gas. I got some carb injection solution with a DW40 type nossle. I thought that I maybe should clean the IAc.The butterfly at the air intake at the engine, change the fuel filter. Any help with the fuel filter replacement. It is under the driver side and it has plastic hairpin clips that came with it. Should I just jack it and get under there. Do I have to take off the INERSIA switch or is there an easier way>? I apologise for the long message. I need help. Also is there an easier way to remove the blower fan on the van. It is hard to get it out around the air conditioner. That is not working either. It is getting cold for a few days of course. Thanks in advance to all who can help me. Hammerhead.
I replaced the plugs and checked the wires. Replaced one. The number 4 plug still has to be done but it is a monster to get at. I replaced the Distributor cap and Rotor. Added some Transmission "Gunk" to stop the pensive acceleration(possible right?). Took it out yesterday. Started and stopped about 4 times at different places. After I let it run at an idle for a bit it then ran worse. It started to backfire on acceleration and run rough at all speeds. Mostly when I was giving it gas. I got some carb injection solution with a DW40 type nossle. I thought that I maybe should clean the IAc.The butterfly at the air intake at the engine, change the fuel filter. Any help with the fuel filter replacement. It is under the driver side and it has plastic hairpin clips that came with it. Should I just jack it and get under there. Do I have to take off the INERSIA switch or is there an easier way>? I apologise for the long message. I need help. Also is there an easier way to remove the blower fan on the van. It is hard to get it out around the air conditioner. That is not working either. It is getting cold for a few days of course. Thanks in advance to all who can help me. Hammerhead.
Post Fiend
Joined: Mar 2003
Posts: 14,413
Likes: 3
From: Sarnia, Ontario, CANADA!
Re: Backfiring like crazy!!!
To do the fuel filter, unhook the inertia switch. Then start your van up until it stalls. Your fuel lines are depressurized. Jack up the van or whatever and unhook the clips. Unhook the lines. Be careful there is still a little fuel and maybe pressure in the lines. Remove old filter and put in the new one. Use new clips that come with the filter. Hook your inertia switch back up. Press the reset button on top just in case. Start the van up (cycle the key forward and back a few times) and check for leaks. Good luck
-Matt
-Matt
Posting Guru
Joined: Aug 2002
Posts: 1,041
Likes: 1
From: Orland USA
Did it backfire before or after you replaced the Distributor cap and Rotor?
Sounds like mine did when I got two of the spark plug wires switched.
Or maybe you have all the wires off by one space on the Distributor Cap.
Sounds like mine did when I got two of the spark plug wires switched.
Or maybe you have all the wires off by one space on the Distributor Cap.
