1979-1993 & 94 Conv [Subscribe to Daily Digest] |
Hi, Diana
Could be a number of possible things, but the best way to procede is by doing the easiest/cheapest things first, and see if any of those things fix it. Glancing at your maintenance record, one of the things that caught my eye is that the throttle body housing was cleaned back in '97. If it hasn't been done again since then, it's overdue, and that's a simple task. Buy yourself some carb/throttle cleaner spray (like GUMOUT or one of those), take the rubber bellows fitting off the front of the throttle area, and spray/clean the innards with the engine turned off.
Another simple/cheap fix is to replace your air filter element. If it's more than a year old or the car's been driven through some heavy dust, it may be restricting your intake airflow. When you're decelerating (foot off the gas) the throttle is pretty much closed and no fuel is being sprayed into the engine. If you depress the clutch as the engine is winding down below 1500 RPM, then as the engine spins down, the idle controls need to "catch" the engine by feeding in air and fuel again. If the lag is excessive and the air and fuel don't get there in time, the car stalls. One thing that will make the "air part" of this response sluggish is a dirty air filter.
While you're at it, look for vacuum leaks, checking vacuum lines -- replace any vacuum tubing that's old, hard, brittle, cracked, or loose. Again, cheap and simple.
Incidentally, if the car is rolling, letting the clutch back out again momentarily will usually restart the engine, so you needn't switch it off and re-engage the starter with the key.
As an experiment with your stalling problem, try engaging the clutch with the throttle off (decelerating) at different RPMs. How does the car behave? If you're decelerating and depress the clutch at 2000 RPM, does it still stall? Does it do it at 2500 RPM? I suspect the stalling only occurs when you engage the clutch at fairly low (<1500) engine speeds, and the idle doesn't recover =quite= quickly enough from there to keep it from stalling.
See if those things I mentioned fix the problem first. If not, the people on here will help you look deeper.
- = M = -
'87 900T 167K
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