... but some things are going to drop in The Plumber's crack eventually.
Case in point , I did a timing belt , water pump, spark plugs , and a few other miscellaneous repairs on a 2000 Solara 3.0. The customer supplied his own parts from Rock Auto . Before doing any work I took it around the block , monitors completed with no drivability issues and no codes set or pending, so I didn't bother checking fuel trims or data pids.
When time came to install the plugs I noted customer brought NGK copper plugs instead of the OE Iridium plugs that came out, very clean , white insulators looking lean , called him and mentioned that cheaper copper ones should work ok , but aren't the recommended replacement ones and wont last half as long as the dual electrode Iridium plugs I removed.He said he understands that and put them in anyway because he didn't want to spend $12-$14 each for Iridium ones.
I re install the intake with new gasket after cleaning throttle body(cable type) , and EGR passages out hook up battery Start vehicle and it has a very high idle that won't settle down, even after a driving it. I notice my long fuel trims are too high but can't find any vacuum leaks, and even loosen the intake manifold braces, and retorque intake plenum, with no change in fuel trim.
I pull the MAF sensor and cleaned it , and spray throttle body cleaner through Iac passage and blow through it to dislodge and carbon particles . Afterwards the idle comes down normal., drives ok , but long fuel trims still too high. I advise customer, it is running pretty lean and to put some injector cleaner in for the interim and bring a fuel filter next time and Ill check the fuel pressure if lean condition persists.
Car run fine for awhile but developed a misfire as customer driving home , and he comes back the next evening with pending code P0300 random multiple misfire, but showing high misfire counts on cylinder 4. I tell him it is still running too lean and that the dual electrode iridium plugs probably fire in lean condition better, and installed one of the old iridium plug in #4 and it seemed fine, but he called on way home that it started missing again, and he would bring it back after 2 weeks, thinking I might have his T-belt a tooth off .
He brings it back after 2 weeks and it has a P0300 and P0301 and P0304. Cylinder one and four share same coil so I swap #4 coil with #2 and miss goes to 2. I install a coil and no more miss, but still has high fuel trims. I turn car off and hear a hiss from brake booster for a second or two after turning off. Check valve checks fine. I plug hose at brake booster and fuel trims drop way down. Why does coincidental unrelated parts to a repair seem to fail right after you do other maintenance or repairs?
Case in point , I did a timing belt , water pump, spark plugs , and a few other miscellaneous repairs on a 2000 Solara 3.0. The customer supplied his own parts from Rock Auto . Before doing any work I took it around the block , monitors completed with no drivability issues and no codes set or pending, so I didn't bother checking fuel trims or data pids.
When time came to install the plugs I noted customer brought NGK copper plugs instead of the OE Iridium plugs that came out, very clean , white insulators looking lean , called him and mentioned that cheaper copper ones should work ok , but aren't the recommended replacement ones and wont last half as long as the dual electrode Iridium plugs I removed.He said he understands that and put them in anyway because he didn't want to spend $12-$14 each for Iridium ones.
I re install the intake with new gasket after cleaning throttle body(cable type) , and EGR passages out hook up battery Start vehicle and it has a very high idle that won't settle down, even after a driving it. I notice my long fuel trims are too high but can't find any vacuum leaks, and even loosen the intake manifold braces, and retorque intake plenum, with no change in fuel trim.
I pull the MAF sensor and cleaned it , and spray throttle body cleaner through Iac passage and blow through it to dislodge and carbon particles . Afterwards the idle comes down normal., drives ok , but long fuel trims still too high. I advise customer, it is running pretty lean and to put some injector cleaner in for the interim and bring a fuel filter next time and Ill check the fuel pressure if lean condition persists.
Car run fine for awhile but developed a misfire as customer driving home , and he comes back the next evening with pending code P0300 random multiple misfire, but showing high misfire counts on cylinder 4. I tell him it is still running too lean and that the dual electrode iridium plugs probably fire in lean condition better, and installed one of the old iridium plug in #4 and it seemed fine, but he called on way home that it started missing again, and he would bring it back after 2 weeks, thinking I might have his T-belt a tooth off .
He brings it back after 2 weeks and it has a P0300 and P0301 and P0304. Cylinder one and four share same coil so I swap #4 coil with #2 and miss goes to 2. I install a coil and no more miss, but still has high fuel trims. I turn car off and hear a hiss from brake booster for a second or two after turning off. Check valve checks fine. I plug hose at brake booster and fuel trims drop way down. Why does coincidental unrelated parts to a repair seem to fail right after you do other maintenance or repairs?
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