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Got a 2001 chevy venture 3.4.. got 2 codes po171 & p1189. An my temp gauge jumps never over heatin but going down. Any suggestions?

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  • Cars & Trucks Master
  • 14,585 Answers

171 is bank one lean. 1189 is the oil sending unit. Start with 1189. Replace the oil sending unit. They always fail. Never had to fix wires for these. Probably leaking oil anyways. 171, Two places to look on these 3.4/3.1 engines. First is the vacuum lines and rubber fittings. Best to check them all, but bank one is one the radiator side of the engine. Also the intake upper plenum is known to crack around the bolts. Use WD40 . start the engine and spray it around the intake. If it starts running better, you have a crack or bad gasket. Fix as necessary.

Posted on Apr 28, 2015

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Posted on Jan 02, 2017

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tripletauto
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SOURCE: fuel sensor gauge

you will need to replace the fuel level sensor.(sending unit) it is in the tank and is hooked to the fuel pump. you can buy seperatly from pump. you may finf it easier to remove the bed if you have some help. it is six or eight bolts and harness unplugs then you can get right to it.

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: jump start 2000 venture

In order to reach the negative terminal to the battery in a 2000 Vebture (I have one) you must first remove the fuse housing. The fuse housing is a large black box that sits atop the battery. There os a single bolt that holds it in place located in fron of the battery bolted into the lip of the motor bay. Unscrew this, then unhook the fuse housing from the cross bar running from the back roght to the front of the motor bay. This is a tight fit so watch your knuckles. Once the fuse housing is out, the negative terminal is located on the backside of the battery. It is a tight squeeze black is negative, red is positive.

Posted on Apr 02, 2009

  • 634 Answers

SOURCE: coolant fan temp sensor location on a 2003 chevy venture

located in thermostat housing or in intake nearby (where top hose connects from radiator to engine)

Posted on Jul 16, 2009

  • 71 Answers

SOURCE: I HAVE A 2001 CHEVY BLAZER MY SERVICE ENGINE SOON

The warning lights are telling you that something is malfunctioning. As long as the warning lights are "ON" you can take it to most major auto parts stores and they will scan it for free, and if the guy that scans it has any automotive knowledge, he'll be able to tell you what is wrong and how/ how much to fix it.
Once you get the codes that the computer is giving, it'll be easier to diagnose your problem, and there are lots of guys on the website who'll be more than happy to tell you how to fix it.

Posted on Aug 27, 2009

SOURCE: Code Po171, P0174 P0403

PO 171 & 174-are O2 Sensors Codes,forget them,just be sure their screwed in tight. Yes ,they will come loose.
PO303-is a bad COP Coil,on #3 cyl ,may be one issue,very common on all ford products
PO-403 -is EGR related.-That probably is shot, also.

Had all thoses and more, on my Lincoln Ls

A misfire will set many codes,that while not unrelated,are not your issuse. You need to understand the symptom,is not always what caused the codes,or not the cause of the problem.

Posted on May 09, 2010

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