2002 Ford Ranger Starting

Tiny
PETERBL
  • 2002 FORD RANGER

Engine Performance problem
2002 Ford Ranger 6 cyl Four Wheel Drive Manual 87000 miles

I have trouble starting the truck on cold mornings. The problem has worsened. Ether usually gets it going but did not work the other day. It was 19 degrees out.
The fuel filter was changed but did not cure the problem. Two things have been suggested: Replacing the fuel pump because the pressure might be too low for cold starts. And two, a fuel enrichment valve has a loose wire or needs replacing. I can't find any reference to this enrichment valve. Please tell me what you think. Thanks,
Pete L

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Monday, November 24th, 2008 AT 11:22 AM

4 Replies

Tiny
RACEFAN966
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  • 5,135 POSTS

Ok no cold start valve on this engine first off. You need to check the resistance (ohm's) of the coolant temp sensor get back to me with that and the temp of the engine at time of check and I will let you know if it is bad ok. Thanks.

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Monday, November 24th, 2008 AT 11:28 AM
Tiny
RASMATAZ
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Have the fuel pressure checked out -if okay start by checking the coolant temperature sensor resistances


http://www.2carpros.com/forum/automotive_pictures/12900_CTS_values_2.jpg



The CTS is similar in operation with a choke on a carb system its job is to tell the computer to give fuel -lengthening the pulse width -cold engine needs more fuel during initial cold starts.

HTH

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Monday, November 24th, 2008 AT 11:36 AM
Tiny
PETERBL
  • MEMBER

Thank you both for your input. I have the means to check this but need to know where the CTS is located. Is it on the radiator the hoses. Don, t know what I am looking for. Thanks
PeterBL

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Monday, November 24th, 2008 AT 12:25 PM
Tiny
RASMATAZ
  • MEMBER

CTS below

3.0L


http://www.2carpros.com/forum/automotive_pictures/12900_cts30_1.jpg



4.0L


http://www.2carpros.com/forum/automotive_pictures/12900_cts40_1.jpg

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Monday, November 24th, 2008 AT 12:50 PM

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