Hi guys, Im new to this forum. Anyhow, Im pulling my hair out over this truck! I picked up a 94 1500 5.2L/4x4 auto from a friend of mine as a daily winter driver. Beside some minor fixes from sitting, shes got one problem that neither I (or my friend) can figure out. When warm the truck stalls at low speeds and slight throttle openings (imagine being behind some cars at a stop sign then moving up, she'd stall). Other than that the tranny shifts smooth and I dont seem to have the problem out of gear or when the truck is moving at higher speeds. I've replaced the map, iac, tps, cap, rotor, plugs, wires, and cant seem to find any sort of vacuum leak... no CEL and no codes... Any ideas? The Daytona's heater core is bypassed and its getting COLD up here!

 

possibly a clogged CAT?

pull the 02 sensor out and see if it relives pressure (courtasy of zman's advice)

Bad Plenum gasket maybe? look into the TB with a light and small mirror and see if theres any oil...if there is the plenums bad, and that could clog the CAT

 

The cat is gutted. I'm looking into the plenum gasket at the moment.

 

possibly the fuel pump....does it drive at all?

 

Yes, it seems to drive great and without fault at higher speeds, its just really annoying when it dies while in stop/go traffic and while backing into parking spaces. I've read up on the plenum gasket leak and have verified that there is in fact a leak! I'll be fixing that and reporting back, hopefully with this issue resolved!