I have a 93 dodge 1 ton p/u w 360 engine. After sitting...

Answer by joe
Submitted on 3/2/2007
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try this - Engine - Lacks Power/Hard Starting When Cold Notes NO: 14-04-97 GROUP: Fuel Systems DATE: Jun. 13, 1997 SUBJECT: Lack Of Power On Acceleration And/Or Long Crank Time In Cold Ambient Temperatures THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 14-06-96, DATED JUNE 28, 1996, WHICH SHOULD BE REMOVED FROM YOUR FILES AND NOTED IN THE 1996 TECHNICAL SERVICE BULLETIN MANUAL (PUBLICATION NO. 81-699-97010). A JUMPER HARNESS WAS ADDED TO THE PARTS REQUIRED SECTION. ALL REVISIONS ARE HIGHLIGHTED WITH ASTERISKS. MODELS: 1992 - 1996 (AB) Ram Van/Wagon 1995 - 1996 (BR) Ram Truck NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH THE 5.2L ENGINE AND FACTORY INSTALLED COMPRESSED NATURAL GAS (CNG) FUEL SYSTEM ONLY. SYMPTOM/CONDITION: Affected vehicles may exhibit a "lack of power during acceleration" and/or "long cranking time" complaint in ambient temperatures less than 30°F. With the fuel level in the fuel tank less than one quarter (1/4) of a tank. DIAGNOSIS: NOTE: IT IS IMPORTANT TO HAVE AMBIENT AND FUEL TEMPERATURES LESS THAN 30°F. IN ORDER TO PROPERLY DIAGNOSE THIS CONDITION. ALSO, THIS CONDITION MAY IMPROVE AS ENGINE TEMPERATURES INCREASE. ALL DIAGNOSIS SHOULD BE PERFORMED AT INITIAL ENGINE START-UP. Allow the vehicle to stabilize to a temperature of less than 30°F. Connect the DRB III to the Data Link Connector (DLC). Locate the Fuel Pressure Sensor information under the Sensor category on the DRB III. Monitor the fuel pressure during vehicle launch and acceleration. Normal pressure should remain at approximately 120 p.s.i. If the pressure drops below 100 p.s.i. during launch or acceleration, perform the following Repair Procedure. PARTS REQUIRED: 1 56022108 Regulator, CNG Fuel Pressure AR (1) 04897950AA Jumper Harness, High-Pressure Fuel Shut-Off Solenoid REPAIR PROCEDURE: This bulletin involves replacing the fuel pressure regulator with a revised regulator. Refer to the appropriate Service Manual CNG Supplement, Group 14, for proper procedures on fuel pressure regulator removal and installation. NOTE: 1992 THROUGH 1994 MODEL YEAR VEHICLES REQUIRE HIGH-PRESSURE FUEL SHUT-OFF SOLENOID JUMPER HARNESS (P/N 04897950AA) TO BE INSTALLED WHEN INSTALLING REVISED FUEL PRESSURE REGULATOR P/N 56022108. THE HARNESS SHOULD BE CONNECTED TO THE EXISTING HIGH-PRESSURE FUEL SHUT-OFF HARNESS, THEN CONNECTED TO THE HIGH-PRESSURE FUEL SHUT-OFF SOLENOID ON THE NEW FUEL PRESSURE REGULATOR. POLICY: Reimbursable within the provisions of the warranty. TIME ALLOWANCE: Labor Operation No: 14-82-32-90 0.8 Hrs. FAILURE CODE: P8 - New Part

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Question by sisu
Submitted on 5/26/2004
Related FAQ: N/A
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I have a 93 dodge 1 ton p/u w 360 engine. After sitting overnite, it starts OK in morning but runs so rough it will not move w/o stalling. After 15 minutes and many tries I can get it going, sometimes revving to 3000 rpms and squealing the tires several times. Then it runs smoothly until the next overnight. I suspect lean fuel or some stuck valve somewhere. Can anyone guide me to some diagnostic methods? Thanks!

Answer by dough69_us
Submitted on 8/29/2004
Rating: Not yet rated	Rate this answer:
It sounds to me as if your carberator is the problem.

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