Where is the CTS located ?
Thread Starter
Senior Member
Joined: Dec 1999
Posts: 656
Likes: 0
From: Northglenn, CO, USA
Car: 91' Z28
Engine: 355-Supercharged
Transmission: 700R4
Where is the CTS located ?
I just bought a new sensor, and i cant find my chilton's manual, so where can i find the Coolant Temp Sensor on the engine ? (91 L98)
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Quoted from Haynes
"The coolant temperature indicator system is composed of a light mounted in the instrument panel and a coolant temperature sending unit located at the left rear corner of the cylinder head on L4 engine and at the front of the left cylinder head on V6 and V8 engines. If a temperature gauge is included in the instrument cluster, the temperature sending unit is replaced by a transducer!"
"The coolant temperature indicator system is composed of a light mounted in the instrument panel and a coolant temperature sending unit located at the left rear corner of the cylinder head on L4 engine and at the front of the left cylinder head on V6 and V8 engines. If a temperature gauge is included in the instrument cluster, the temperature sending unit is replaced by a transducer!"
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by Glenn91L98GTA:
That's for the temperature guage, the CTS is for the ECM which is a completely different sensor. The CTS is where I previously said it is.</font>
That's for the temperature guage, the CTS is for the ECM which is a completely different sensor. The CTS is where I previously said it is.</font>
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 4
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
86, that doesn't surprise me. I think those Haynes books are far too vague, full of mistakes and when you get to anything really technical, they refer you to "your local GM dealer or GM shop manual".
Also, various years/engines/induction systems had various sensors in differing places which are often overlooked in the Haynes manuals. In fact, recently someone with a MPFI SD V6 had a Haynes book say his SES code 32 referred to his "MAF" when in fact it should have said "MAP".
Personally, other than REAL BASIC DIY repairs of a fairly minor level, I have little use for the Haynes Manuals. Nothing beats a good GM Shop Manual for your specific year of car. I purchased my GM Shop Manual the same time I bought my GTA new in 1991.
Also, various years/engines/induction systems had various sensors in differing places which are often overlooked in the Haynes manuals. In fact, recently someone with a MPFI SD V6 had a Haynes book say his SES code 32 referred to his "MAF" when in fact it should have said "MAP".
Personally, other than REAL BASIC DIY repairs of a fairly minor level, I have little use for the Haynes Manuals. Nothing beats a good GM Shop Manual for your specific year of car. I purchased my GM Shop Manual the same time I bought my GTA new in 1991.
Trending Topics
Joined: Mar 2001
Posts: 505
Likes: 0
From: Western NY
Car: 84 T/A
Engine: 305HOL69
Transmission: 700R4
Axle/Gears: 3.42
In the Haynes manual, on page 320 Fig. 13.41 shows the general location where the CTS is for the ECM. Item 'D'. I agree, these books are way too vague to get a good reference from. And the wiring schematics for the 82-84 cars are awful!!
------------------
DR Stevens
1984 Trans Am 305HO L69
sucks gas, hauls ***
1991 Firebird 305 LO3
for days when I need a/c
------------------
DR Stevens
1984 Trans Am 305HO L69
sucks gas, hauls ***
1991 Firebird 305 LO3
for days when I need a/c
Thread
Thread Starter
Forum
Replies
Last Post
bigjay89gta
Engine/Drivetrain/Suspension Parts for Sale
12
Oct 15, 2015 08:04 AM
