Option 4 Posted July 15 Share Posted July 15 Hi I have a 1.0lt ecoboost 2020 Puma Titanium with 20000 miles on, its the newer chain driven engine, I was wondering if anybody else has the same problem as me. It has a rattleing or tingling noise when starting from cold, it lasts for about 25 seconds then goes, any advice will be appreciated. Tthis is the video sound below https://clipchamp.com/watch/VGS0S6boroW 1 Quote Link to comment Share on other sites More sharing options...
Aldridge Andy Posted July 15 Share Posted July 15 Sounds normal to me, these engines can have a few different noises when cold and then refine dramatically once warmed up. 1 Quote Link to comment Share on other sites More sharing options...
dezwez Posted July 15 Share Posted July 15 i think they take a bit of time for oil pressure to build up😊 Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted July 15 Share Posted July 15 As above, the timing chain tensioner is hydraulic. The chain will rattle for a few seconds while oil pressure builds up. Quote Link to comment Share on other sites More sharing options...
unofix Posted July 15 Share Posted July 15 8 hours ago, Option 4 said: Hi I have a 1.0lt ecoboost 2020 Puma Your profile says it's a 2023 model ? Quote Link to comment Share on other sites More sharing options...
agraham Posted July 16 Share Posted July 16 My new(ish 4000 miles) cam chain version 1.0L Ecoboost has always made a few clattery/tappity noises when cold - particularly so in those freezing spells last winter. After a mile it has quietened down. Quote Link to comment Share on other sites More sharing options...
Option 4 Posted July 16 Author Share Posted July 16 14 hours ago, unofix said: Your profile says it's a 2023 model ? Opps, sorry slip of the finger , ive corrected it now 2020 1 Quote Link to comment Share on other sites More sharing options...
Ianhende Posted August 3 Share Posted August 3 On a similar theme, I have a 2020 puma hybrid with 20,000 miles on the clock. Couple of months ago it started a tapping/rattle but only when the engine is at normal temperature. Ford tech department say it’s normal but I’m not sure, why is it only a recent thing? Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted August 3 Share Posted August 3 4 hours ago, Ianhende said: On a similar theme, I have a 2020 puma hybrid with 20,000 miles on the clock. Couple of months ago it started a tapping/rattle but only when the engine is at normal temperature. Ford tech department say it’s normal but I’m not sure, why is it only a recent thing? Has the oil & filter been changed recently? If it's contaminated with petrol from short, cold runs and GPF regens then it may be a bit thin towards the end of the 2 year servicing schedule, which would show up more when the oil is warm. 1 Quote Link to comment Share on other sites More sharing options...
wilto Posted August 12 Share Posted August 12 What year did these engines go from wet belts to chains. My engine code is BZJA Thanks in advance Quote Link to comment Share on other sites More sharing options...
agraham Posted August 13 Share Posted August 13 It varies, all MHEV are chain. Some later non MHEV are chain, most are belt but that seems to be pot luck as Ford seemed to fit whatever engine they had on hand for some models. If your turbo is at the front it's belt, at the back it's chain. Quote Link to comment Share on other sites More sharing options...
Eric Bloodaxe Posted August 13 Share Posted August 13 11 hours ago, wilto said: What year did these engines go from wet belts to chains. My engine code is BZJA BZJA is a 155 MHEV chain cam. All the current model Puma are chain, as is the Mk 4 Focus. As Andrew mentions, the Fiesta is more complicated - the chain cam was phased in from mid 2020, but some versions with the 100ps engine seem to have remained wet belt. 1 Quote Link to comment Share on other sites More sharing options...
wilto Posted August 13 Share Posted August 13 Thanks guys, I've "heard" some horror stories about the belt drives. What sort of maintenance schedule is there for the timing chain? Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted August 13 Share Posted August 13 27 minutes ago, wilto said: What sort of maintenance schedule is there for the timing chain? None for the chain. Auxiliary belt on the MHEV is recommended every 4 years or 72k. oil pump belt is recommended every 10 years or 144k. oil & filter change is every 2 years or 18k. Spark plugs & air filter are every 4 years or 36k. 1 1 Quote Link to comment Share on other sites More sharing options...
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