Question about 1998 Dodge Ram 1500 4WD
New engine (rebuilt), new Idle Air Control valve (AIS), Coolant Temp Sensor good, new O2 sensor, getting gas, getting spark, wiring in accordance with schematics on file at Mitchels sight, new distributor pickup, new coil, new wires. After the rebuild it started fine and went through the initial break in (15 mins at 1500rpms) fine then it started running rough at idle after about two minutes of running and would finally stall. I could keep it running if I maintained rpms at or above about 1500, but now it won't start at all. I've double and triple checked all wiring. Even went so far as to put in a rebuilt engine computer (SBEC), but so far notta.
Sorry to hear this...
(been there.. done that) Seriously think I can help.
What I am going to suggest is based on my own travails...
For experimental purposes only... you DO NOT want to run your engine this way... beyond seeing if it makes a HUGE difference:
My guess: You still are STILL KNEE DEEP in DTCs
(diagnostic trouble codes: I was... (& I fancy I'm smarter than the average bear)). My '75 Ranchero (muffler) had no diagnostic help... Pure luck finding that... but the '95 Jaguar
V12 engine had TONS of DTCs to confuse me...
I could NOT find my trouble... and PAID DEALER
prices to have my garage queen XJS repaired
Open the EXHAUST above the catalytic converter...
and then try to start it...
There are DIRECT fit exhaust units available from
both ROCKAUTO & AMAZON... if you find either of
these to be your issue... buy your parts locally or hire the
job out to the PROFESSIONALS,,,
but before you do... KNOW YOUR PRICES
Hope this helps!
1992 DODGE DAYTONA 3 0L V6 Catalytic Converter RockAuto
Posted on Apr 05, 2017
Try using some starting fluid. if it trys to start then you know its a fuel issue and not spark related.
Posted on Apr 05, 2017
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Posted on Jan 02, 2017
SHOWING MISFIRES ON SCAN TOOL?IF NOT,ENGINE CONTROLLER HAS NOT LEARNED MISFIRE MONITOR..WILL HAVE TO BE DRIVEN A BIT FOR RELEARN..IF YOU CAN SEE MISFIRES..MISFIRING ON MORE THAN 1 OR ALL CYLINDERS?CHECK UNDERSIDE OF IGNITION COIL FOR CRACKS..IF NOT CRACKED,YOU MAY HAVE A FAULTY CRANK SENSOR..ANY CORRODED PLUG WIRES AT DISTRIBUTOR CAP?ALSO CHECK IF ANY OIL PRESENT IN INTAKE MANIFOLD..GASKET ON BOTTOM OF INTAKE MAY BE BROKEN CAUSING AN INTERNAL VACUUM LEAK
Posted on Jun 22, 2009
SOURCE: 1998 dodge ram pickup 318 eng.
If the engine seems to run fine over 1450 RPM maybe there is a vacuum hose leaking or EGR valve is slightly stuck open. Any help from the OBD II trouble codes? Or is there simply no MIL and no stored information in the OBD II computer read at the local parts store through the connector by the drivers knee?
Posted on Dec 04, 2009
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