So, I just bought a 95 red 1500 2WD 5.9L that had been sitting idle for 18 months and needed some work and tlc, and still have one issue i cannot resolve.She will crank and run fine, idle is approx 0.5 rpm and no problem, But at stops, slow down and reverse she is always trying to stall, drops to 0 rpm, sometimes recovers and bounces back BUT most times stalls.

I have replaced power steering lines, replaced water pump, replaced aic sensor, replaced tps sensor, replaced air filter, changed oil and filter.

Any ideas, other sensors or adjustment ? Many thanks

 

Did you disconnect the negative battery cable while you changed out the sensors?

 

Cap, rotor, plugs, plug wires, air filter, and clean the throttle body.

 

Ok, so i have pulled and thoroughly cleaned the throttle body, installed new plug wires and plugs (champion .35 gap). Have already installed new aic sensor, air filter, oil change, Checked battery, alternator, disconnected battery after sensor install.... Still wants to stall (and sometimes does) at low revs in drive and reverse, At idle (approx.75) is fine, at driving speeds fine, but at low speeds and low revs drops to 0 sometimes bouncesback to .75 but most times stalls.... help !!

 

Was the fuel system cleaned after it was sitting for 18 months, and new fuel added to the tank?

 

I had the same problem mine was the O2 pre-cat was shooting high volts. Might be that also check all your vacuum lines. ALso make sure you disconnect you negative when changing the O2 otherwise it serves useless. Do you have a loud whistle coming from the engine compartment?

 

5 gallons of 93 octane and 1 bottle of heet added.

 

Heet will only absorb moisture. The injectors should be cleaned correctly. A vacuum leak is a good possibility also as mentioned.

 

What is needed and how do you get to clean out injectors ?

 

Would vacuum leak sound right as there is no stalling issues at idle or higher rev ?