Forum: C4 ZR-1 Technical Postings
11-25-2019
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Replies: 6
Views: 5,375
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Forum: C4 ZR-1 Technical Postings
11-25-2019
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Replies: 6
Views: 5,375
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Forum: C4 ZR-1 Technical Postings
11-23-2019
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Replies: 6
Views: 5,375
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Forum: C4 ZR-1 Technical Postings
11-19-2017
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Replies: 9
Views: 5,752
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Forum: C4 ZR-1 Technical Postings
11-18-2017
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Replies: 9
Views: 5,752
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Forum: C4 ZR-1 Technical Postings
11-06-2017
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Replies: 9
Views: 5,752
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Forum: C4 ZR-1 Technical Postings
07-10-2015
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Replies: 8
Views: 2,230
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Forum: C4 ZR-1 Technical Postings
07-10-2015
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Replies: 8
Views: 2,230
Re: Rev Limiter
Many Thanks for your response !! Impressive !
Excuse my ignorance what is WOT ?
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Forum: C4 ZR-1 Technical Postings
07-10-2015
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Replies: 8
Views: 2,230
Rev Limiter
Hi,
I am entered in my first hillclimb on Sunday, can anybody tell me if my 1990
ZR1 has a rev limiter ?
Regards
Pat in England
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Forum: C4 ZR-1 Technical Postings
07-04-2015
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Replies: 9
Views: 3,232
Re: Heater Blower
http://www.zr1.net/forum/images/smilies/fahne19.gif
All fixed !
Many thanks for your help !!
Regards,
Pat
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Forum: C4 ZR-1 Technical Postings
05-21-2015
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Replies: 9
Views: 3,232
Re: Heater Blower
Hi,
The new heater blower resistor cured the problem with the blower fan staying on. Thanks ! Now the INFL / REST ( inflatable restraint) warning light is on, also the red logo in the instrument...
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Forum: C4 ZR-1 Technical Postings
04-08-2015
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Replies: 9
Views: 3,232
Heater Blower
My heater blower continues to run when the ignition is switched off ?
Is it the resistor or relay. Can anybody advise. I have removed the resistor which could have been getting hotter than expected....
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Forum: C4 ZR-1 General Postings
10-23-2014
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Replies: 12
Views: 4,457
Re: ROUGH RUNNING 3
My rough running is now cured, I changed the injectors for a reconditioned set
and that did the the trick. What a motor !!!
Many thanks to all who advised.
Pat
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Forum: C4 ZR-1 General Postings
05-17-2014
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Replies: 11
Views: 2,708
ENGINE OIL
I am due for my engine oil change.How important is it to use !0/30 rather than
5/30 fully synthetic ? Any thoughts would be welcome.
Regards,
Pat
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Forum: C4 ZR-1 General Postings
04-20-2014
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Replies: 2
Views: 1,015
speaker
I have an intermittent screeching noise from my left front Bose speaker.
Can anyone confirm whether it is the amplifier or speaker ?
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Forum: C4 ZR-1 General Postings
04-20-2014
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Replies: 12
Views: 4,457
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Forum: C4 ZR-1 General Postings
04-20-2014
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Replies: 12
Views: 4,457
Re: ROUGH RUNNING 3
Scot,
My ZR1 is now running smooth after a short stop, I am expecting the symptom to reoccur but in no hurry change injectors as I am not planning a long trip for a few months.
Thanks for your...
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Forum: C4 ZR-1 General Postings
04-11-2014
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Replies: 12
Views: 4,457
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Forum: C4 ZR-1 General Postings
04-11-2014
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Replies: 12
Views: 4,457
Re: ROUGH RUNNING 3
No mods, 22,000 miles. it was imported in 1990 and mainly stored, only 2,000 miles in first
10 years. Second owner took it to 18,750 miles, I bought it 2 years ago, It is red with black
upholstery...
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Forum: C4 ZR-1 General Postings
04-11-2014
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Replies: 12
Views: 4,457
Re: ROUGH RUNNING 3
Scott,
Thanks for your thoughts, very helpful.
They are the original injectors so are suspect ?
I did not intend to start two treads,operator error.
Regards
Pat
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Forum: C4 ZR-1 General Postings
04-11-2014
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Replies: 12
Views: 4,457
ROUGH RUNNING 3
Hi from England,
Re: my 1990 ZR1.
Time to get it out of the garage and have another go at solving my rough running problem.
The symptoms are; starts up, runs smooth with normal power, as long as I...
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Forum: C4 ZR-1 Technical Postings
11-03-2013
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Replies: 16
Views: 3,514
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Forum: C4 ZR-1 Technical Postings
11-03-2013
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Replies: 16
Views: 3,514
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Forum: C4 ZR-1 Technical Postings
11-03-2013
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Replies: 16
Views: 3,514
Re: ROUGH RUNNING 2
Re : Chilton's, I have ordered a GM FSM.
I will be doing the fuel pressure test.
Thanks again !
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Forum: C4 ZR-1 Technical Postings
11-03-2013
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Replies: 16
Views: 3,514
Re: ROUGH RUNNING 2
Nice to hear from you again. Yes, I am going to do some more diagnostic work before buying parts. I don't have a GM factory manual, I do have a Chiltern repair manual, a GM service manual supplement...
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