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I would think that taking a few quick simple measurements would be easier than wrenching off a starter that “might” be the problem.
I would think that taking a few quick simple measurements would be easier than wrenching off a starter that “might” be the problem.
I would test for vacuum leaks around the brake booster. Additionally, I would test vacuum pressure at the brake booster; I think it should be around -18mg” at idle.
I would test for vacuum leaks around the brake booster. Additionally, I would test vacuum pressure at the brake booster; I think it should be around -18mg” at idle.
Q: what does the owner’s manual recommend?
Since you don’t know what is already in there, I would flush the entire coolant system (it probably needs one any way) and fill er’ up with OEM specified coolant.
Q: what does the owner’s manual recommend?
Since you don’t know what is already in there, I would flush the entire coolant system (it probably needs one any way) and fill er’ up with OEM specified coolant.
Nice avatar brian98redskins…. I lived in D.C. for about 10 years and been to FedEx Field a few times… of course, this was the pre-RG3 when they sucked, but I stood by the skins. However, it is during this time when the skins had some really good players, such as: Champ Bailey, Derrell Green, Clinton Portis, Stephen Davis, Brian Orakpo, Deion Sanders, and Brian McNabb. :side:
extra bonus points if you’ve listened to the “sports junkies” on 106.7 WJFK. banana:
Nice avatar brian98redskins…. I lived in D.C. for about 10 years and been to FedEx Field a few times… of course, this was the pre-RG3 when they sucked, but I stood by the skins. However, it is during this time when the skins had some really good players, such as: Champ Bailey, Derrell Green, Clinton Portis, Stephen Davis, Brian Orakpo, Deion Sanders, and Brian McNabb. :side:
extra bonus points if you’ve listened to the “sports junkies” on 106.7 WJFK. banana:
Post 1995 drivability issues should be addressed with a scan tool. Monitor PID data in efforts to identify vacuum leaks, fuel trim, and sensor issues.
Post 1995 drivability issues should be addressed with a scan tool. Monitor PID data in efforts to identify vacuum leaks, fuel trim, and sensor issues.
Being a 94′ you qualify for the following:
- Check battery voltage. (12.6 V is optimum)
- Load test the battery.
- perform a starter amperage draw test.
- perform a voltage drop test of both the insulated and ground side of the starter circuit. be sure to also VD the battery terminals. The maximum allowable drop is 100mV per ASE standard. If you see anything above .1 Volts (100mV) you have unwanted resistance in the circuit; the problem must be addressed.
Being a 94′ you qualify for the following:
- Check battery voltage. (12.6 V is optimum)
- Load test the battery.
- perform a starter amperage draw test.
- perform a voltage drop test of both the insulated and ground side of the starter circuit. be sure to also VD the battery terminals. The maximum allowable drop is 100mV per ASE standard. If you see anything above .1 Volts (100mV) you have unwanted resistance in the circuit; the problem must be addressed.
Awesome post. In-depth testing and analysis. Good troubleshooting methods.
On some vehicles with a vacuum controlled fuel regulator, if I suspected a fuel pressure issue, I would purposely pinch the regulator fuel return hose and force maximum fuel pressure to the rail… I mention this only to see if this would have been an option on your sensor controlled fuel pressure system.
Based on your initial complaint, I would have guess slow disintegration of the fuel filter causing a restriction in the lines causing a reduction in fuel pressure, but I guess it was the poor performing fuel pump. I believe that with a proper scan tool or oscilloscope one could have ‘current ramped’ the fuel pump circuit to see if the amperage draw was within spec.
Awesome post. In-depth testing and analysis. Good troubleshooting methods.
On some vehicles with a vacuum controlled fuel regulator, if I suspected a fuel pressure issue, I would purposely pinch the regulator fuel return hose and force maximum fuel pressure to the rail… I mention this only to see if this would have been an option on your sensor controlled fuel pressure system.
Based on your initial complaint, I would have guess slow disintegration of the fuel filter causing a restriction in the lines causing a reduction in fuel pressure, but I guess it was the poor performing fuel pump. I believe that with a proper scan tool or oscilloscope one could have ‘current ramped’ the fuel pump circuit to see if the amperage draw was within spec.
