JWAZ73
Newbie
Hello Friends! My son and I are working on a 'project truck' that is his first truck. It was found in someone's backyard and hadn't been regularly driven in almost two years. It wouldn't start but a TBI rebuild kit and new injectors later, we drove it home. When idling, there was a noticeable cough, stutter, miss, not sure what to call it. Now that the weather in Phoenix has gotten hotter the condition is worse. When idling in park you can hear the 'miss' and the RMPs will slow. When driving, after coming to a complete stop, in gear with your foot on the break, it will stall almost every time then starts back up with no issue.
Here is what I have done so far.
* New PCV valve, gasket and hose (valve to TBI)
* New MAP vacuum hose (the old one was cracked)
* New IAC valve
* Inspected remaining vacuum hoses, all are in good shape, not brittle or cracked (evap canister hose & EGR solenoid hose).
* New distributor cap and rotor
* New plugs (.035 gap)
The vehicle passed the emission test with very good numbers. Seems to have good power but I feel the fuel economy could be better (currently about 11 MPG).
Before I shoot the parts cannon at this engine I wanted to ask about it...
Plug wires?
TPS?
MAP Sensor?
Could timing be an issue (haven't checked it)?
Any thoughts?
I appreciate you're input!
-James
Here is what I have done so far.
* New PCV valve, gasket and hose (valve to TBI)
* New MAP vacuum hose (the old one was cracked)
* New IAC valve
* Inspected remaining vacuum hoses, all are in good shape, not brittle or cracked (evap canister hose & EGR solenoid hose).
* New distributor cap and rotor
* New plugs (.035 gap)
The vehicle passed the emission test with very good numbers. Seems to have good power but I feel the fuel economy could be better (currently about 11 MPG).
Before I shoot the parts cannon at this engine I wanted to ask about it...
Plug wires?
TPS?
MAP Sensor?
Could timing be an issue (haven't checked it)?
Any thoughts?
I appreciate you're input!
-James