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97 chevy: diesel..started blowing..white smoke and loss of horsepower

 

Customer Question

i have a 97 chevy with a 6.5 diesel it started blowing black smoke and then changed to white smoke and loss of horsepower

 

Optional Information:
Year: 1997
Make: Chevrolet
Model: k3500
Engine: 6.5 turbo diesel

Submitted: 1229 days and 22 hours ago.
Category: Chevy
Value: $13
Status: CLOSED
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Expert:  Chevy expert replied 1229 days and 22 hours ago.

this may be a faulty injector pump

Tests/Procedures:1. Test the ignition feed to the fuel solenoid driver module, or check the same ignition circuit at the Engine Shut Off (ESO) solenoid on top of the injection pump.

2. The ignition feed is a Pink wire and should remain above 12v with engine running and when the engine stalls.

3. If the voltage drops below 10v at the time of the engine stall, replace the ignition switch.

4. If the voltage is OK, go through checks as described in TSB #77-63-06A.

5. If these checks show OK, replace the fuel solenoid driver module on the side of the injection pump.

6. Be sure to transfer the resistor from the old module to the new module as shown in the TSB.
Potential Causes:Fuel Solenoid Driver Module
Ignition Switch
Injection Pump

Customer replied 1229 days and 22 hours ago.

what is tsb #77-63-06a

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Expert:  Chevy expert replied 1229 days and 21 hours ago.

here it is tsb

Customer replied 1229 days and 21 hours ago.

i forgot to tell you that it also has a miss coming from exhaust

 

Accepted Answer

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Expert:  Chevy expert replied 1229 days and 21 hours ago.

yes these are well known for bad injectors , pumps and solonoid drivers , the misfire is common

Expert TypeASE Certified Technician
Category: Chevy
Pos. Feedback: 95.4 %
Accepts: 2219
Answered: 12/3/2009

Experience: 30 yrs experience ase cetified tech shop owner

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