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Renault scenic 1.9 td '03 starting problems in cold weather

New glow plugs, crankshaft sensor, idler & battery fitted to car in last 2 weeks. Starts perfectly well in warmer conditions but as soon as temperature drops car becomes extremely difficult to start and very often will not start at all. Mechanic thinks it might be fuel pressure issue. Hope not as the car is not worth fixing if the case!

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  • 131 Answers

Coolant temp sensor, you have one for your gauge and another for your ecu, it adjusts air fuel ratio dependant on the outside temp as colder air is denser than warm.

Posted on Dec 29, 2013

  • Peter Veale
    Peter Veale Dec 30, 2013

    Thanks for your time. I will certainly consider this as a possible solution!

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: running problem renault scenic

hi check that your distributer is set up properly

Posted on Jul 11, 2008

SOURCE: 03 Altima ( 2.5 ) crank position sensor - retired ASE Master Teck

and YOU took much to long to answer --BUT thanks for your attempt -

Posted on Sep 11, 2008

  • 1861 Answers

SOURCE: Car starts hard and runs rough in cold weather, undrivable

The correct spark plugs are very important. Glad to hear you got it fixed good.

Posted on Jan 20, 2009

  • 2 Answers

SOURCE: Problem with cold starting Ford 7.3L Diesel at > freezing temps

most likely the relay. its located to the left of the fuel filter( looking at the motor from the front). my experience is that they only last about 50,000 miles. the part costs about $20 at an navistar dealer. remove the cowl over the filter, disconnect the batteries(so you don't short the new relay out if you cross the polarity with a wrench) ,remove the four wires from the ceramic relay, un-fasten the relay from the base. reverse the process with the new relay. CAUTION; do not over-tighten the nuts on the wire studs, you could crack the ceramic relay.(iv'e done it) . hope this helps

Posted on Mar 18, 2009

alicantecoli
  • 22095 Answers

SOURCE: 2004 Hyundai Terracan, 2.5 turbo diesel, manual.

right renew the glow plug timer/relay if you put a meter on the glow plugs when cold and turn ign on (with help) it should supply power for a about 20 secs ,time depends on outside air temperature ,if all else fails then do a colin --- use a push button switch,wired to a relay so glow plugs can be operated by pushing the switch which you will mount on the dash ,cant beat a manual overide system

Posted on Dec 14, 2009

Testimonial: "alicantecoli provided accurate and correct advice for the diesel cold engine start problem I had."

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