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If a car backfires, the fuel mixture is incorrect. I believe it's too lean. Also, timing could be off. Try increasing the fuel mixture with the jets on the carburetor. You may want to reference your VW shop manual for which one to use. If that doesn't solve the problem, then have a garage time the vehicle to make sure pre-ignition isn't happening.
Your VW could be backfiring because: A backfire is when the ignition of fuel doesn't take place in the ignition/combustion chamber, it(a backfire) can take place in the intake or exhaust. It can be caused by a fuel to air ratio not being correct, also if the timing of the spark is not just right that could cause it to back fire. It could be running lean with not enough fuel and too much air, or could have too much fuel and not enough air. It could be because the intake valves are not shut when the combustion takes place, therefore the combustion would take place in the wrong spot. The most likely cause are from: 1. Incorrect timing, the timing issue could be caused by bad wiring/ or bad ignition. 2. Incorrect fuel to air ratio, bad fuel filter, low fuel pressure-caused by weak fuel pump. Most cars will have the same cause for backfiring, as long as it's an internal combustion engine it shouldn't differ...
Possibly the timing belt has failed. Check the timing marks in orientation to #1 cylinder TDC and distributor rotor.
your battery is getting low.
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What would cause backfiring through the throttle body in a 1986 gmc sierra pickup with a 350?
Backfiring in any motor is either badly out of time or a burnt valve.
How do you prohibit a car from backfiring?
Hey John==Without knowing what you have, it is strictly guessing. Check the firing order. Make sure the compression is ok on the engine. GoodluckJoe
1999 Dodge Grand Caravan 3 point 3L is sputtering backfiring and rough idling but no check engine light is on Any suggestions as repair shops cannot figure out problem?
have they check the timing on it. sometimes when timing is off by a few degrees it would cause both rough idle and backfiring. also check for a dead cylinder.
Why do i have Backfiring issues on my 1996 explorer?
backfiring can be caused by many things. bad sparkplugs, bad condensor, bad coil, bad distributer,bad plug wires.burnt out valve will cause backfiring.bad fuel injectors or carburattor,depending on which system u have.leaking inlet manifold, leaking exhaust manifold.a stcky choke . incorrect timing, the list goes on. see a mechanic
Where can you get a wiring diagram for the fuse block of a 74 VW Beetle?
Go to the Library. http://www.vintagebus.com/wiring/ It has diagrams for all vintage VW's
Why is your lawn mower backfiring?
If it is backfiring only when you kill the engine, allow the engine to idle a few minutes before you kill it. If it is backfiring while in use, check the intake gasket and bolts for wear or looseness.
What if your engine is running sluggish and engine is backfiring on your 73 vw bus what do you do?
Major tune up time. Replace plugs and filters and do a valve job. Make sure the carbs are synched. If this fails to improve things, get your carbs worked on.
I have a 1970 vw bus and i am getting a lot of backfire . i had the carborator rebuilt but i still have the problem of it backfiring.?
after rebuiling carb jet have 2 b adjusted, check ur timing also If you have any exhaust leaks close to the engine it will promote backfires.
How do you solve backfiring?
To prevent backfiring make sure the belt is tight and in good working order. Also clean the air filters regularly.
How do you stop a 1968 Dodge 318 motor backfiring?
If it is backfiring the timing is set incorrectly or the spark plug wires are not connected in the correct order.
Check engine report on engine?
Backfiring.
How to stop backfiring?
The best answer for this is: Get a tune-up.
What causes an engine to spin backwards?
backfiring.
Will you end up blowing your Chevy 350 enigine if it keeps backfiring?
Probably. Backfiring is a symptom of a lean condition. Wouldn't want to leave it like that.
How do you fix motorcycle backfiring?
advance the timing a little.
Is it possible for a faulty distributor to cause backfiring?
Yes.
Chevy 350 backfiring?
Needs a tune up
