Follow the instructions on the bottle and it should help without damaging anything. Adding vinegar or other non car specific stuff can be too harsh or ineffective.
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- Thread starter mustystang
- Start date
I replaced the water pump in mine earlier this year. I had no problems with filling it or air bubbles. Filled it after the pump was done, let it idle in the garage 15 minutes or so, then let it cool down overnight. Had to add maybe a quart the next morning. Took it for a drive around my favorite twisty curvy road after topping it. Let it sit overnight again. Had to add maybe a pint. No more since then.
I wonder if driving it around a hard twisty curvy road helps to get bubbles out of the nooks and crannies?
I wonder if driving it around a hard twisty curvy road helps to get bubbles out of the nooks and crannies?
manicmechanic007
5 Year Member
Certainly the flush procedure could have made your heater core leak
Not common
Check the HVAC case drain for any wetness from either flush or antifreeze
Not common
Check the HVAC case drain for any wetness from either flush or antifreeze
I chickened out flushing my Jeep. I only left thr stuff in there for a half hour or less. I let the water do the work.
manicmechanic007
5 Year Member
The evaporator drain is rubber and does get clogged
You just need to twist it around in your fingers and squeeze it some to clean it out
Real easy
You put your eyes on it
You just need to twist it around in your fingers and squeeze it some to clean it out
Real easy
You put your eyes on it
manicmechanic007
5 Year Member
Electrolysis is common and bad (early 96 Taurus freeze plugs did not last a year)
GM has a technical bulletin to test the voltage in the coolant
Some have 3+ volts and that is a problem
Their solution is added ground wires
Just use your dvom to check. Put the red probe in the coolant with the engine running
GM has a technical bulletin to test the voltage in the coolant
Some have 3+ volts and that is a problem
Their solution is added ground wires
Just use your dvom to check. Put the red probe in the coolant with the engine running
Even a Harbor Freight Tool promo sale digital model will measure ohms (resistance), ac, and dc volts. I got one and have not used my high quality analog or my fancier digital one much since.
The amps or milliamps (1000th of an amp) the meters can measure vary a lot. A cheap meter might have only a 500 ma circuit, or a 10 amp port.
I have not seen a meter that can test the Cold Cranking Amps CCA of a full battery load without an induction clamp.
Some meters also check capacitors and transistors. Those features are not normally needed for troubleshooting on 79-93 cars.
The amps or milliamps (1000th of an amp) the meters can measure vary a lot. A cheap meter might have only a 500 ma circuit, or a 10 amp port.
I have not seen a meter that can test the Cold Cranking Amps CCA of a full battery load without an induction clamp.
Some meters also check capacitors and transistors. Those features are not normally needed for troubleshooting on 79-93 cars.
manicmechanic007
5 Year Member
They all will measure ohms. You do not need to spend a lot on one. I have 3 and use the cheap harbor freight one most of the time. I use my expensive Fluke when I am showing off. I use one with ground down nails for probe ends when I get serious back probing connectors.
