2000 3.8 Rpm Drops low and Dies during slowing down, stopping, engaging clutch or braking

ColdStanger

New Member
2000 V6 3.8 Manual

My car runs strong, good power and good take off and throttle response. Recently bought this car knowing of this problem. The car when (slowing down, shifting manual slowing with clutch, letting off gas for a few seconds or stopping/braking to stop sign or in traffic, turning corners) my rpms drop down low quickly to around 500 I think and the car shuts off. It does this most of the time after the car has warmed up. usually if I start car first thing in day it will not cut out on me until the car warms up or after 5 miles or so of driving. If I either shift the manual to neutral and give it gas while stopped or turning corners it wont shut off.

Today it cut on me and the battery was dead when I tried to restart it . I tested it and replaced the battery because it was bad thinking that was the problem but the problem continued.

While changing spark plug wires one of the wires was not attached on a plug so I assumed that was why I was having problems but that didn't help although it did give me more power and less erratic rpm and stuttering while driving and gas smell gone.

I have replaced the TPC, I swapped IAC with another used one that came off a junk car, changed spark plug and wires, and replaced the battery. Cleaned and tested the MAF sensor by tapping on it while car is running (no engine change) and I also unplugged it and drove it and Im still having problems.Coil pack seems good as I unplugged each . Coil pack seems good as I unplugged each wire and got a constant bluish spark from each one. Cleaned the throttle body although it looked clean. New Air Filter (Cold Air Intake install)

I'm pulling my hair out trying to figure what the problem may be. I'm thinking maybe replace the EGR valve, Fuel Filter or crankshaft censor.

Car will just die down when slowing down or coming to stops or hard braking. RPM drops low first then it does out quickly

Any help would be greatly appreciated
 

5150GSD

Member
I was thinking the same thing. The alternator might be going bad. I would get it tested. your local auto parts store should be able to ck it
It should be putting out about 13 volts. Do a Stress test on it. Radio headlights on windshield wipers on. It should keep a steady 13 plus volts on it. I would also ck for codes with an OBD 2 . you might have some codes stored in your ECU.
 
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