2.7 starts ticking after it warms up

35

Asked by Jun 21, 2010 at 11:33 AM about the 2003 Dodge Intrepid SE

Question type: Maintenance & Repair

2003 2.7 intrepid.It sounds fine when it starts but after you let idle for 5 minutes or so it starts ticking like a lifter.at first i thought timing chain but a mechanic said it would do the ticking as soon  as you started it up if it was the chain.i bought it to resell [tranny was out of it] i don't would to sell it if this is a major issue and get a bad rep. for sell junk.if it is just a lifter is there something i can add to oil to quiet it down?? it sounds like its coming from under the plastic intake cover THANKS

2 Answers

20

Probably an air bubble in the cooling system. There is a bleeder valve in the front center of the engine that you can open to release the air, however I would only do this as a last resort as these bleeders are known to break very easily. Here is what you do. First, make sure you have a full coolant resevoir (up to the "max" line) Heat the car up and once it starts ticking rev the car up to about 2000 rpm for about 30 seconds or so. You should see the heat gauge to up to the halfway point which is where it should be at normal overating temperature. Do this as many times in a row as you need to so that the air blowing out of the vents on the dash board is as hot as you would expect it to be at full operating temp. Shut the car down and let it completely cool. (should take a minimum of 4 or 5 hours, longer if you are in a very warm climate) Once it has cooled open the resevoir and you should see the level has dropped. Fill it full again and repeat this procedure until the clicking has stopped

2 people found this helpful.
10

Don't know if you got this fixed or not, but I got a car with the same problem and it turned out to be the timing chain tensioner. Fixed that problem..lol, but now got to figure out why the tranny downshifts after you drive for a little while. Hope this helped in some way.

1 people found this helpful.

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