Engine smokes and rough Idle on start up
#11
02-24-2012, 07:13 AM
Join Date: Jul 2010
Location: LaPorte,tx
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thanks
it dosnt have glow plugs
we have had more then one truck that has came in with a similar problem and they all cleared up after the engine was up to operating temp, they would white smoke on start up but as engine temp would rise they would run better and at operating temp they cleared up
it could also be an injector thats overfueling i was just saying that if your going to pull the injectors out i'd run a compressoin test while they are out, it has become standard practice for our shop, only takes about 30min and we dont charge for it, gives the customer peace of mind if they all come back good and if a problem cylinder is caught early enough it can be fixed with the block in the frame
also if i did happen to fail the compression test you would still need to have the injectors tested because an overfueling injector can cause higher cylinder temp in that cylinder and result in the broken ring, so you dont want to fix the symptom and not fix the cause if ya know what i mean
we have had more then one truck that has came in with a similar problem and they all cleared up after the engine was up to operating temp, they would white smoke on start up but as engine temp would rise they would run better and at operating temp they cleared up
it could also be an injector thats overfueling i was just saying that if your going to pull the injectors out i'd run a compressoin test while they are out, it has become standard practice for our shop, only takes about 30min and we dont charge for it, gives the customer peace of mind if they all come back good and if a problem cylinder is caught early enough it can be fixed with the block in the frame
also if i did happen to fail the compression test you would still need to have the injectors tested because an overfueling injector can cause higher cylinder temp in that cylinder and result in the broken ring, so you dont want to fix the symptom and not fix the cause if ya know what i mean
#12
02-24-2012, 10:05 AM
Diesel Enthusiast
#13
05-15-2012, 08:55 PM
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well finally took my truck to my mechanic and he said the injectors are dripping. So now I'm in the market for injectors, i have heard the rebuilt's are a hit and miss so thinking new bosch replacements if I can afford them and try to change them myself. Any tips on doing the change out of the injectors. also who has the best deal for them out there.
#15
05-15-2012, 10:27 PM
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#16
05-15-2012, 11:50 PM
#17
05-16-2012, 09:36 PM
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I left the truck with him for 6 days while we were at the races, so he may have pulled some ,not sure
#18
05-21-2012, 10:12 AM
#19
05-23-2012, 01:59 PM
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we today I pulled all 6 injectors, taking them in the morning for bench testing. 2 of the injectors had fuel pouring out of them when removed and the others stayed dry but had what looked like carbon build up on the tips. I will let you know what the test show.
---AutoMerged DoublePost---
well got the injectors bench tested and 2 were bad and a 3rd was borderline, I'm only replacing whats bad now that I know how easy it is to change them
---AutoMerged DoublePost---
well got the injectors bench tested and 2 were bad and a 3rd was borderline, I'm only replacing whats bad now that I know how easy it is to change them
Last edited by mopwr2004a; 05-23-2012 at 01:59 PM. Reason: Automerged Doublepost
#20
05-23-2012, 06:04 PM
