308QV Slow Down Light Issue

I think the sensors are about $100. (if you do it yourself)
If the slow down light error is legit, I think it usually means that one bank of cylinders is not firing, thus throwing unburned fuel into the hot cats, which can cause fire and ruin your day. Be sure to figure it out BEFORE driving again.

 

No guru here but when I had slow down light issues it was a bank misfiring and was a worn rotor. Could be electrical or fuel related. I'd start with electrical starting with the simplest things first. Probably not individual cylinder issues like plugs, extenders. Check with timing light to see which bank is the culprit. Good hunting.

Jeff

 

You meant $150.00 for a new flywheel sensor, right?

 

I've got the same issue with my 85 308. In my case it takes an hour or two of highway driving before the light comes on. (I rarely drive the car that far) I called the dealership about it and they said it could be a number of things including the gas/air mixture. They said I should bring it in for diagnosis.

Based upon that, I wouldn't jump to any immediate conclusions about the cause. I'd recommend taking it to a shop for an estimate. That way, it's diagnosed for you and you can also determine if you can do the repairs yourself or can afford to have them done there.

Just my 2 cents.

Kevinwi

 

I had the same problem and it turned out to be a bad distributor rotor. Check both distributors first and see if that's the problem.

Good Luck!

 

I'd agree too on getting it to a shop if your not handy at DIY. The problem I had when I did that was hours were spent testing the fuel system pressures and injectors that if the electrical system were first checked would have amounted to 30 minutes of diagnosis. So instead of 2-3 hours of labor it was more like 8. Common sense to me indicated an electrical problem most likely given the sudden onset of problems. Knowing it had to be a bank not working given the very poor running and having checked the individual extenders I would have started with the rotors, then coils, basically check upstream of the individual wiring to the cylinders. Checking there first would have uncovered the problem very quickly and the car would have been back quicker with a bill at least half as much. Looking back, I wish I had done this as it's something I could have tackled. Maybe the mechanic did right, but it sure seems like that's where he should have started. These kinds of problems I know can be difficult to diagnose, and many times take a lot of labor to figure out, I just think in my case it should have proceeded in a different order. Hope this helps.

Jeff

 

I'd recommend not driving it until sorted out. When you say it surges, you mean it loses power not gains, correct? By it being "surgy" that would describe to me it suddenly gaining, not losing power. But , your third sentence seems to indicate los of power. I'd bet it's rotors or possibly coil but more likely the former.

Jeff