I was driving down the road and then she backfired and studerd till it just died. When I tried to start it it would sort of start but then just died. Any ideas I was thinking it fell out of timming
3fe engine trouble
- Thread starter highsierra4x4
- Start date
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check your timing, easily done by rotating the distributor cap. Unless the bolt is loose, i find that hard to believe...
Ignition timing doesn't magically change by itself.
If it fires briefly when cranking the starter and dies soon after releasing the key from the start position, that points to the AFM which runs the fuel pump secondary.
Or the intake plenum has a large tear in it.
If it fires briefly when cranking the starter and dies soon after releasing the key from the start position, that points to the AFM which runs the fuel pump secondary.
Or the intake plenum has a large tear in it.
- Thread starter
- #4
It has a new intake house I checked for leaks. It also has a new afm. It was smoking out out the intake like it was backfire through the intake. It’s just weird that it just died driving down the highway it just fell on its face and kept back firing then died
Please provide more information.
What maintenance has been done.
What is the timeline of this issue related to maintenance.
- Thread starter
- #6
The last maintenance was the afm and I cleaned out the engine bay. Also cleaned up all the wires the po had wired directly to the battery the know yo to a blue seas fuse box. It’s had 3 different afm the first 2 were bad
What is the timeline of this issue related to maintenance?
Does it fire briefly while cranking the starter?
Also, how did you determine the AFMs were bad? Were they checked against the procedure in the FSM?
Does it fire briefly while cranking the starter?
Also, how did you determine the AFMs were bad? Were they checked against the procedure in the FSM?
Maybe check your MAF? I did some work on my 3fe intake sometime ago and managed to break a soldered joint in the MAF. It would crank and almost start up but die every time. Maybe something on yours came apart while driving. Good luck!
- Thread starter
- #9
It will crank and when you let the key off it try’s to fire then dies. So I dose fire briefly but only to like 100 rpm then dies so the original afm just died wasn’t sending any signals the second one didn’t communicate with the fuel pump. Then I tried one from a 93 camery and it worked but still had a slight rough idle around 500 so I found one on the web for a 3fe and it did the same till it died driving down the road
How many miles did you put on it with the camry AFM? And about how many miles did you put on it with the current AFM?
I see a lot of assumptions with no facts in your statements.
There is a procedure in the FSM that will test the AFM, but apparently you haven't done that. You may have a wiring issue that you don't see.
The only "communication" with the fuel pump is the switch on the flap of the AFM that fires the circuit opening relay to fire the fuel pump. That circuit can be diagnosed very easily and bypassed if necessary for troubleshooting.
- Thread starter
- #12
The camery probably close to 800 the new one 300
- Thread starter
- #13
We did do the by pass for the fuel pump and it ran much better. That afm also made the cel come on. When I put the Camry one the cel went away